KEY BISCAYNE, Fla. Mark Jackson Jersey . -- Novak Djokovic benefited from an erroneous call and claimed he didnt realize he had broken the rules. When Andy Murray walked to the net and challenged him about it, Djokovic responded with a shrug and a sheepish smile. Murray lost the dispute, and the match. The pivotal ruling against the defending champion helped Djokovic win 7-5, 6-3 in the quarter-finals of the Sony Open. Roger Federer was up a service break twice in the second set but lost to No. 20-seeded Kei Nishikori 3-6, 7-5, 6-4. Nishikori will play Djokovic on Friday. The point that aggravated Murray occurred at the start of the 12th game, when he was serving at 5-6. Djokovic charged forward to volley a short ball and hit it for a winner. Murray argued -- and TV replays confirmed -- he should have been awarded the point because Djokovics racket was on the far side of the net when he hit the ball. Chair umpire Damian Steiner declined to change his call, and such rulings cant be appealed for video review. Murray briefly discussed the matter with Djokovic. "I went and asked Novak, and he told me he was over the net," Murray said. "Look, it might be my mistake," Djokovic said. "I think I crossed the net with the racket. I didnt touch the net. Maybe the rule is that you are not allowed to pass on his side with the racket. Im not sure. You tell me." That is indeed the rule. Djokovic said that if he had understood it correctly, he would have conceded the point. A flustered Murray committed unforced backhand errors on the next three points to lose the game and the set. "Obviously, that distracted him mentally, and after that he gave the set away," Djokovic said. Murray took a lead in the second set but lost the final four games and the last 12 points. Afterward, he downplayed the bad call. "Im not angry," he said. "It maybe had a slight bearing on that game, but I was still up a break in the second set." Nishikori will be playing in only his second ATP Masters 1000 semifinal, and his first in 2 1/2 years. "I thought I really played well, especially in the third set," Nishikori said. "I was hitting balls deep and striking well. Everything was going well." Federer was the runner-up to Djokovic at Indian Wells two weeks ago, and said hes pleased with his start to the year despite the latest loss. "I just couldnt find my rhythm on the serve today, which was surprising," Federer said. "Its a bit frustrating, but Kei did well to stay with me. He was more consistent in the second and third, and in the end its to his credit." Li Na became the first Chinese woman to reach the Key Biscayne semifinals when she beat Caroline Wozniacki 7-5, 7-5. Lis opponent Thursday night will be Dominika Cibulkova, who erased three match points in the second set -- one when a call was overturned via replay -- and beat Agnieszka Radwanska 3-6, 7-6 (5), 6-3. Six-time champion Serena Williams will play five-time runner-up Maria Sharapova in the other womens semifinal. Williams has beaten Sharapova 14 consecutive times. Murray won the Key Biscayne title in 2009 and 2013 but wasnt at his best against Djokovic. The Scotsman committed five double-faults and 32 unforced errors, including a flurry down the stretch. He took a 3-2 lead in the second set with his only service break, then double-faulted twice to give it right back. But it all might have been different if not for the call that made one point stand out from the other 125. Djokovic had won praise for his sportsmanship when he conceded a point following an erroneous call in his match Tuesday, but against good friend Murray, he left the verdict to the umpire. A sideline reporter told Murray that TV replays showed he was correct about the call, and during the ensuing changeover he questioned Steiner. "His racket was over the net," Murray said. "Its quite clear. You can see it on the replay." "I have to make a decision at the moment," Steiner replied. Any hard feelings on Murrays part didnt carry over after the match, when he shook hands with Djokovic and Steiner. "Its a hard one for the umpire to call," Murray said. "Just frustrating." And Djokovic said the call was the umpires to make. "Its not my fault," he said. "I mean, I was never lying on the court. I always try to be fair to whoever I play against." John Starks Jersey . -- When Steve Blake checked in at the scorers table with 5:25 remaining in the third quarter, Stephen Curry shook his head and shouted across the court, asking Golden State Warriors coach Mark Jackson not to take him out. Mitchell Robinson Jersey . Join World Soccer Pickem 2014 for your chance to win $5,500 in cash prizes by picking the winner of each game all the way through to the tournament final. Will you ride a favourite such as Spain or Germany, or cast your lot with an underdog like Ivory Coast or Mexico? Perhaps key victories from Netherlands or the United States will be your key to victory. http://www.knickssale.com/kids-damyean-dotson-knicks-jersey/ . -- Atlanta Braves pitcher Tommy Hanson is being checked for a possible concussion after blowing a tire on his way to the first workout of spring training.TORONTO – Marcus Stroman is returning to the Blue Jays and will make his first career major league start on Saturday against the Kansas City Royals. The purpose, as laid out by manager John Gibbons, is two-fold. "We want to get Stroman up here and give him a look," said Gibbons, identifying the first part of the equation. "Our thinking was were going to back (Drew Hutchison) off a couple of days. (Mark) Buehrle will throw Sunday. Hutch will throw Tuesday in Detroit. The plan all along, coming in, was we were going to pick some spots and give Hutch a little breather." Stromans time was coming sooner rather than later, whether it was Saturday, late next week or sometime in June. This is as much about shielding Hutchison, the 23-year-old right-hander who occupies one of the top three spots in Torontos starting rotation along with Buehrle and R.A. Dickey. Hutchison, remember, underwent Tommy John elbow ligament replacement surgery in July 2012. After a year-long recovery, he threw 26 2/3 innings in seven minor league starts late last year and followed that up with 21 2/3 innings in six starts in the Arizona Fall League. Do the math: Hutchison entered this season having thrown 48 1/3 innings of competitive baseball in the better part of two years. Already in 2014, in 11 starts for Toronto, Hutchison has thrown 65 innings. "After his last start I thought he looked a little bit tired," said Gibbons. "I thought it was the perfect time to give him a couple of extra days." To accommodate Stroman on the active roster, the Blue Jays designated reliever Bobby Korecky for assignment just one day after selecting his contract from the Triple-A Buffalo Bisons. Korecky retired the final four Royals hitters in mop up duty on Friday night. The Jays fell to Kansas City 6-1. With Stroman throwing Saturday, followed by Buehrle on Sunday, an off day on Monday, Hutchison on Tuesday, Dickey on Wednesday and J.A. Happ on Thursday, Gibbons could return to Buehrle for Friday nights gamme against the St. Kevin Knox Jersey. Louis Cardinals. His other option is to go with a six-man rotation for the time being, something he considered earlier this season before Brandon Morrows injury changed the plan, and continue to include Liam Hendriks in the mix. "Doesnt mean anything right now," said Gibbons of Hendriks status. "Hes on schedule. Hell pitch sometime at the end of next week when hes scheduled." A six-man rotation? "No, were not sure how its all going to play out," said Gibbons. Stroman made five appearances out of the bullpen in an earlier stint with the Blue Jays this season. The results were mixed but he thrived in high-leverage situations, including getting his first big league victory in a 6-5, 10-inning win over Philadelphia on May 5. Groomed since the beginning of last season to be a starter, Stroman will bring his swagger to the mound on Saturday and his former Bisons teammate, catcher Erik Kratz, is looking forward to seeing it. "He sees that his stuff plays when hes on and when his stuff is on there are very few who are as good as he is," said Kratz. "Theres a reason hes a prospect or whatever it is or that hes being asked to come in and start in the rotation. I expect to see a guy thats going to come out and give everything hes got and have a lot of success." Stroman was sent back to Buffalo after the Blue Jays wrapped up a series in Texas almost two weeks ago. He alluded to some confusion over not having been a starter in his first go round in Toronto. Stroman sports a 3.03 ERA and a 1.150 WHIP for Buffalo. Kratz thinks hell be more comfortable with a defined role. "I think it was hard for him to understand where he needed to be out in the bullpen," said Kratz. "Does he throw all of his pitches? Does he not throw all of his pitches? The way that he goes out in the game, hes a gamer, thats something that I think he learned from his first time, that his stuff plays. He just needs to keep going after guys." 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