A final between Andy Murray and Roger Federer would bring together two compelling storylines on Wimbledons Centre Court on Sunday.Murray has ambitions of winning his first Grand Slam title in three years and Federer is seeking his first major in four years, which would take him to a record eight Wimbledon titles and an unprecedented 18 Grand Slams.But Canadas Milos Raonic, who plays Federer in a semifinal on Friday, and Murrays semifinal opponent, Tomas Berdych, might just have something to say on the matter (both matches Friday on ESPN/WatchESPN). Here are five reasons the in-demand match might not materialise:Federer hangoverA round after Federers great escape in the quarterfinals against Marin Cilic, the Swiss star might fall a little flat. He is 35 next month and hopes to become the oldest man of the professional era to win Wimbledon. He was moving well in the fifth set of the quarterfinal against the Croatian, but there could be a delayed reaction.Federer missed this years French Open because of a back injury -- the first Grand Slam he hadnt competed at since the 1990s -- and has had other injury problems this season.The adrenaline surge brought on by the clash with Cilic - Federer came from two sets down and saved three match points -- could be enough to carry him through to the final, or it could leave him exhausted, and there must be a little doubt about how his body will recover.John McEnroeTwo years ago, Raonic reached his first Wimbledon semifinal and lost to Federer. Arguably, the greatest difference between 2014 and this summer is John McEnroe, who joined the Canadians team this summer as a consultant.The New Yorker and ESPN analyst has been urging his charge to come forward more and to impose himself on matches, both of which he has been doing.No doubt, the straight-talking, positive McEnroe will also have Raonic believing as never before that he can progress into a first Grand Slam final.Fast conditionsSunshine is forecast for Friday, and the warmer it is, the faster the balls will fly through the air. That would probably help Raonic and Berdych, enhancing their serving strength, more than Federer and Murray.Raonic has served up to 143 mph at this tournament, though on a hot day he could touch 155 mph, which is his personal record.Berdychs fastest serve of the tournament so far travelled at 135 mph. Thats 1 mph faster than Murrays fastest of The Championships, while Federers speediest was 128 mph.No one has hit more aces this fortnight than Raonic (114). For comparison, Federer has produced 65, though many of his would have come through placement rather than raw power and speed.Berdychs tally for the tournament so far is 56 aces, while Murray has served 44, and a hot day could see many more fly through.Peak powersBerdych is playing his best grass-court tennis in years, and this is the deepest he has gone in the Wimbledon draw since he was the runner-up to Rafael Nadal in 2010.When Berdych sees the ball as if its one of those giant ones in the Wimbledon Gift Shop, and when hes hitting the sweet spot with his forehand -- as might well be the case on Centre Court on Friday -- theres not very much his opponent can do about it. As Murray observed in his BBC column: Tomas hits a big ball.Theres also an unknown aspect to this match -- it will be their first meeting on grass. A top-10 player and former Wimbledon finalist, Berdych wont be described as a dark horse. And yet, considering he has reached this stage, he hasnt been scrutinised too closely.In all the excitement on Wednesday, with Federer and Murray surviving five-setters, and Raonic ending the run of Americas Sam Querrey, Berdychs victory against Frenchman Lucas Pouille almost went unnoticed. Could he surprise everyone?Czech mateMurray might again have difficulties finishing an opponent off. While he led Jo-Wilfried Tsonga?2-0 in sets in their quarterfinal, and was later a break up in the fourth set, he needed five to go through.If Murray is in the ascendancy against Berdych, but then doesnt close down the match, could the Czech take greater advantage than Tsonga did?Theres no way Im losing this match, Murray shouted in the direction of his guest box early in the fifth set against Tsonga. Defiance may not be enough if Berdych is on form. cheapjerseysforsale . Only three players drafted by NHL clubs were included on the Czech selection camp roster on Wednesday. Those players were Dallas Stars 2012 first-rounder Radek Faksa, Winnipeg Jets 2013 fourth-rounder Jan Kostalek and Phoenix Coyotes 2012 seventh-rounder Marek Langhamer. www.cheapjerseys forsale .net . But Bourque, who has missed three games with a lower-body injury, wont be in the lineup when the Habs travel to Buffalo to take on the Sabres on Wednesday. http://www.cheapjerseysforsale.net/ . Wilson hit Schenn from behind during Tuesday nights game in Philadelphia, earning a five-minute major for charging and a game misconduct. He has a phone hearing with the department of player safety, which limits any potential suspension to five or fewer games. cheapjerseysforsale .net . - Connor McDavid scored 53 seconds into overtime as the Erie Otters came from behind to defeat the visiting Guelph Storm 4-3 on Saturday in Ontario Hockey League action. www.cheapjerseysforsale.net .Y. -- The Buffalo Sabres have placed centre Cody Hodgson on injured reserve and recalled two players from their AHL affiliate in Rochester. ATLANTA -- Pittsburgh Pirates manager Clint Hurdle is sitting Andrew McCutchen for three straight days.McCutchen, the 2013 NL MVP, says hes OK with the decision even if he doesnt agree with it. The outfielder sat out Pittsburghs victory Tuesday night over Atlanta and will not be in the lineup the next two nights because of a season-long slump.I have to first address myself before I can think about addressing anything else, McCutchen told The Associated Press. I know if I was going out and playing the best ball that I know I can play that I wouldnt be in this position.They wouldnt be in the position of having to make those decisions, either.McCutchen, a five-time All-Star and four-time Silver Slugger, hit .298 in his first seven seasons with Pittsburgh. In 97 games this year, he has a .241 average and is on pace for a career high in strikeouts.After watching McCutchen go 1-for-12 in a three-game series last weekend at Milwaukee, Hurdle called McCutchen into his office Sunday to tell him that he would not be in the lineup for a three-game series against the Braves.Hes tried a lot of things, Hurdle said in his pregame talk with reporters. This mans fought, shown up, done early work, late work, side work, video work. In situations like this where Ive seen it happen with good players, you just unplug em. The managers got to do it. Im just asking him to sign off on it.He obviously has a lot of fight in him and wants to continue. But its like hitting refresh button.Unless a game against the Braves goes extra innings, Hurdle wants to give McCutchen four straight days of rest. The Pirates were off Monday.Thats the tough pill to swallow for me personally, McCutchen told The AP. Wanting to be in the lineup and them feeling that this would be a good time for me to unwind, to chill, to get my head right -- the commpetitive side of me is like, No, Im good.dddddddddddd Im fine. Im going to perform and do my job.Theyre like, For your own sake, this is what we feel.Matt Joyce was in left field for the second straight night. Starling Marte was in center field, Gregory Polanco in right.McCutchen says it was tough accepting the trades that shipped out Francisco Liriano, Pittsburghs Opening Day starter, to Toronto for Drew Hutchison and closer Mark Melancon to Washington for Felipe Rivero and a prospect.The Pirates began Wednesday three games out in the NL wild-card standings. Theyve been to the playoffs the past three years, so McCutchen didnt necessarily want to make big roster changes at the trade deadline.Youre going to feel one way about certain things because you have teammates, you have friends and you hate to lose anybody, he said. Hate to see anybody go. Those are your brothers.McCutchen insisted that he trusts the Pirates front office to keep the club competitive.Understanding the business, understanding that we do have -- performing -- and they have a job as well, he said. Thats the main thing, to give us the team to produce. Just as its hard for us to understand what they do, Im sure its vice versa with them.Hurdle hopes McCutchen will benefit from the time off. He plans to put him back in the lineup Friday at home against Cincinnati.I dont know what it feels like to have the résumé he has and go through the challenges hes had this year, Hurdle said. 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