medalist Juan Martin del Potro is unseeded

Its more than four months since Jurgen Klopp was appointed as Liverpools new manager, but how much of an impact has he had? Adam Bate examines the progress so far... Jurgen Klopp is an infectious personality. In December, Liverpool captain Jordan Henderson told Sky Sports that the new boss was having a real positive impact and insisted the team would just keep getting better and better under the German. Hendersons predecessor, Steven Gerrard, claimed he felt taller just by having a coffee with Klopp.And yet, while the former Borussia Dortmund coach has already enjoyed several memorable moments in England, Liverpools season continues to stutter along. Tenth when Klopp took the reins, he has only been able to get them up to ninth. Two late Sunderland goals at Anfield on Saturday saw another two points dropped as they were overtaken by Everton. Klopp missed that fixture with appendicitis - just the latest problem in a winter thats been full of them. A plethora of injuries in attack and defence have hampered progress, while Liverpools involvement in three separate cup competitions has left Klopp with little time to focus on long-term planning on the training ground. The Sunday Supplement panel on who is to blame for Daniel Sturridges situation But with more than four months having passed since he pitched up on Merseyside to instant acclaim, Sundays clash with Aston Villa will be Klopps 30th in charge in all competitions. Thats enough to provide a body of work that reveals the issues he has addressed and those that continue to cause problems. Lets examine the evidence...ResultsThere have been high points. A 3-1 win at Chelsea was impressive, while Sky Sports pundit Jamie Carragher described the 4-1 victory at Manchester City as one of the best hes seen by any team in the Premier League. But excitement at these triumphs must be tempered by a host of unconvincing displays that have exposed the teams ongoing frailties. Liverpool players celebrate their teams first goal in the 4-1 win at Manchester City There were comprehensive defeats at Newcastle and Watford, while the teams home form has been an issue too. Klopp actually has a worse win percentage than predecessor Brendan Rodgers this season, with his Premier League win percentage of 35 per cent identical to that of Roy Hodgson - a man who lost the Liverpool job after 20 games. Klopp has had 17 at the helm. Liverpool managers Premier League win percentages Manager PL win percentage Roy Hodgson 35% Kenny Dalglish 43% Brendan Rodgers 52% Jurgen Klopp 35% Of course, the cup competitions have been a positive. While Klopp has appeared bemused by the relentless nature of the fixture list - and those FA Cup replays - hes kept Liverpool in all of these competitions. Later this month, he takes the team to Wembley for the Capital One Cup final against Manchester City.AttackingThe 6-1 win at Southampton in the teams Capital One Cup quarter-final at St Marys showcased just how devastating a Klopp team can be going forwards. Liverpool fans havent seen enough of it, but there have been hints at the sort of fluency not seen by the Reds since the heady days of the 2013/14 season. Liverpool were all smiles as they put six past Southampton in the club After scoring only eight goals in eight Premier League games prior to his arrival, Liverpool scored 24 in 17 under Klopp - an impressive upturn, given that he has still not been able to rely on Danny Ings and Daniel Sturridge. There are still doubts over summer signing Christian Bentekes long-term ability to adapt to life at Anfield. Premier League chances created (since Klopps arrival) Chances created Liverpool 236 Tottenham 220 Man City 208 Underlying data supports the view that Klopp has brought greater fluency. In fact, Liverpool have created more chances than any Premier League team since his arrival in October. The quality of those chances is an issue - not least due to Philippe Coutinhos penchant for optimistic long-range shooting - but its something to work with.DefendingUnfortunately, the problems at the other end have not gone away and Klopp appears as exacerbated as anyone by Liverpools inability to prevent opponents finding the net. This is a team that has conceded more Premier League goals this season than any team outside the bottom six. Plenty of them have come on Klopps watch too. Simon Mignolet has been among those to blame for Liverpools error-strewn displays After beginning the campaign with three consecutive clean sheets, only four more have followed in 17 games under the new man and Liverpool are yet to keep a shut-out in 2016. Thats particularly frustrating for Klopp, given that only Tottenham have faced fewer Premier League shots on target. Liverpool just arent saving them. Premier League 2015/16: Errors leading to shots Errors Liverpool 25 Arsenal 23 Aston Villa 22 Everton 22 There can be little sympathy while they remain the architects of their own problems. Only West Ham have conceded more goals as a result of individual errors and when it comes to shots as a result of mistakes, Liverpool are making more than anyone. Thirteen different players have been responsible too - only bottom-club Aston Villa have so many culprits.StyleWhile these errors have undermined progress, its merely a continuation of long-standing problems within the squad. But despite these ongoing issues, Liverpool have changed in other ways. We want to look different, said Klopp in his opening press conference. Thats what I expect. And he has succeeded in adding intensity to the teams work. Premier League 2015/16: Liverpools running Distance per game Sprints per game Under Rodgers 107.9km 474 Under Klopp 112.8km 557 That much was evident in the very first game in charge when Liverpool became the first team in 2015/16 to outrun Tottenham. Klopps men made 614 high-intensity sprints at White Hart Lane, despite having only passed the 500 mark twice in eight games under Rodgers. Theyve since made 600 or more sprints on three further occasions this term. Liverpool have made 578 tackles this season, more than any other team in the Premier League. On average, Klopps Liverpool make 83 more sprints per game than under Rodgers and are running almost five kilometres further as a team. Its symptomatic of the pressing game that Klopp demands. Similarly, only Leicester have come close to making as many tackles. While results are lagging, there are signs that Liverpool are looking much more like a Klopp team.ConclusionThis feeling that Liverpool might be on an exciting path is just one of many differences between Klopps team and Hodgsons version, even while the supporters wait for those win percentages to diverge. The underlying numbers offer encouragement that when the obvious issues are addressed - injuries, personnel and time - tangible improvement is likely. Jamie Carraghers cheeky offer to resume his playing career with Liverpool Furthermore, with the club still in three cup competitions, notably the Capital One Cup final, there is an opportunity for Klopp to deliver in his first season what Rodgers could not come up with in three full campaigns - a trophy. That would be something to sustain supporters over the summer and increase the belief that Klopps impact will really be felt in 2016/17. 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Cundiff, who had the unenviable job of replacing Dawson last season, agreed Thursday to a one-year, $1. NEW YORK -- The Latest on the U.S. Open, which starts Monday (all times local):5:30 p.m.American teen CiCi Bellis is back in the main draw at the U.S. Open.Bellis became the darling of the 2014 tournament when the then-15-year-old stunned Australian Open runner-up Dominika Cibulkova in the first round. She lost in the final round of qualifying last year, but on Friday, Bellis won her third-round qualifying match to clinch a spot in the main draw.Still just 17, Bellis is ranked 158th in the world.American brothers Ryan and Christian Harrison both advanced through qualifying to make the main draw. Christian, 22, is ranked 688th and making his first U.S. Open appearance. Ryan, 24, and ranked 118th, is in his seventh.---5:10 p.m.Andy Murray is facing a first-round opponent at the U.S. Open to whom he once said during a match: No one likes you on the tour -- everyone hates you.The dust-up occurred last year in the quarterfinals at Munich after Lukas Rosol appeared to intentionally bump Murray during a changeover. Murray later grumbled across the court to Rosol about nobody liking him.In a post-match interview, Murray acknowledged he shouldnt have made the comment but added that Rosols actions required some sort of response. He noted Rosol had a reputation for that sort of behavior.Asked Friday about the incident, the second-seeded Murray said he and Rosol spoke after the match and cleared the air. He insists: I have actually gotten along fine with him apart from that day.Currently ranked 82nd, Rosol upset Rafael Nadal at Wimbledon in 2012. Hes 0-2 in his career against Murray.---3:35 p.m.Wimbledon champ Andy Murray says hes taking it easy in practice after a grueling stretch between the Olympics and the Masters event in Ohio.Murray played 14 matches in 15 days en route to winning his second straight gold medal and reaching the final at Cincinnati, when the fatigue finally caught up to him.After losing to Marin Cilic on Sunday, Murray took Monday and Tuesday off. He said Friday hes practiced lightly in New York to get used to the conditions at the U.S. Open and isnt doing any off-court work, trying to be as fresh as I can.---3:10 p.m.Rafael Nadal says his troublesome left wrist keeps getting better but still isnt 100 percent.Nadal had to withdraw during the French Open because of the injury and missed 2+ months. The 14-time major champ returned for the Olympics and reached the semifinals in singles and won the doubles gold medal.The left-handed Spaniard said Friday that now I can start to hit my normal forehand, but it will take time to regain full confidence in the shot. When he first came back from the injury, he had to adjust his technique to avoid pain, so now he needs to get comfortable again with his regular stroke.---1:40 p.m.Top-ranked Serena Williams says she hasnt practiced much because of her right shoulder injury.Williams was struggling physically during her third-round loss at the Olympics and pulled out of the hard-court warmup in Cincinnati because of the shoulder problem. She said Friday that Im just now starting to feel a little bit better.The American says she was able to practice for only two days before the Rio Games after the shoulder started bothering her following her Wimbledon victory. She says she is doing a lot of physical therapy.Williams is seeking her 23rd major title, which would break a tie with Steffi Graf for most in the Open era.---1:20 p.m.Top-ranked Novak Djokovic says he injured his left wrist in Rio de Janeiro a few days before the start of the Olympic tournament.The right-handed Djokovic needs that wrist for his backhand. He said Friday hes getting there and hopes hell be as close to 100 percent as poossible when he starts to defend his U.ddddddddddddS. Open title.The 12-time major champ also said his issues at Wimbledon werent physical, but there were other things I was going through. He declined to elaborate on those problems other than to say they had been resolved.After Djokovic was upset in the third round of Wimbledon by 41st-ranked Sam Querrey, he was asked if he was 100 percent healthy, replying not really but not going into details.Djokovic lost in the first round at the Rio Games to 2009 U.S. Open champ Juan Martin del Potro, whose ranking slipped because of left wrist problems of his own. Djokovic then pulled out of the hard-court warmup at Cincinnati, the first time hed cited an issue with the wrist.---12:35 p.m.Top-ranked Serena Williams will meet two-time major semifinalist Ekaterina Makarova in the first round of the U.S. Open as the American seeks a record 23rd Grand Slam title.Makarova made two straight major semis at the 2014 U.S. Open, losing to Williams, and the 2015 Australian Open. Her ranking has slipped to 36th, and she just missed a seed at Flushing Meadows. The Russian is coming off an Olympic doubles gold medal.Williams could face fourth-seeded Agnieszka Radwanska in the semifinals, which is also when she could potentially meet sister Venus. Australian Open champ Angelique Kerber and French Open winner Garbine Muguruza are in the other half of the draw, which was set Friday.---12:05 p.m.Top-ranked Novak Djokovic faces 2013 Wimbledon semifinalist Jerzy Janowicz in the first round of the U.S. Open.Janowicz has been ranked has high as 14th but has struggled in recent years and missed much of this season because of injuries. Hes currently ranked 228th and used a protected ranking to get into the U.S. Open.Fridays draw set Djokovic and Rafael Nadal as potential semifinal opponents, while Andy Murray and Stan Wawrinka are in the other half of the bracket.Olympic silver medalist Juan Martin del Potro could face 19th-seeded American Steve Johnson in the second round. Ranked No. 142 because of three left wrist surgeries, the 2009 U.S. Open champ got in with a wild card.---11:10 a.m.American Sloane Stephens has withdrawn from the U.S. Open because of a right foot injury.The announcement Friday means that Olympic gold medalist Monica Puig becomes the 32nd and final seed, as Stephens had been seeded 24th. Had Puig remained unseeded, she could have met one of the top players in the first or second round.The 23-year-old Stephens was a 2013 quarterfinalist at Flushing Meadows and reached the semifinals at the Australian Open that year. While she had more success earlier in her career in the Grand Slams than in other tour events, that pattern had reversed in the last couple of years.Stephens hadnt played since losing in the first round at the Olympics.---9:45 a.m.When the U.S. Open draw sets the first-round matchups, a top player could find himself with a daunting task.Olympic silver medalist Juan Martin del Potro is unseeded at the years final major, which starts Monday. Del Potro is ranked No. 142 because three left wrist surgeries forced him to miss so much time. The 2009 U.S. Open champ needed a wild card to get into the tournament.So Fridays draw could put him in position to face a seeded player in the first or second round. Thats what happened to top-ranked Novak Djokovic at the Olympics, when he lost to del Potro in his opening match. Its possible they could meet again early at Flushing Meadows.Del Potro has defeated three of the U.S. Opens top four seeds since the start of Wimbledon. ' ' '