( CNN ) -- It might not make up for losing the Wimbledon final but in his first meeting with Andy Murray since last July , Novak Djokovic got a slice of revenge . The Serbian world No . 2 elbowed defending champion Murray out of the Miami Masters , but not without a spot of controversy . Djokovic sealed a 7-5 6-3 victory with some trademark tennis but was given a helping hand by a debatable call towards the end of the first set . Although the umpire allowed Djokovic 's winner to stand , replays appeared to show the 26-year-old had reached over the net to play what proved a decisive volley . Read more : Venus Williams has 'nothing to lose ' Murray questioned the call , speaking to both his opponent and the official before play continued , and Djokovic wrapped up the opening set 7-5 . The Briton defeated Djokovic in straight sets on his way to a second grand slam title at Wimbledon in 2013 and the Serbian repeated the feat in front of a sunkissed Miami crowd . Although Murray earned a break to lead 3-2 in the second , Djokovic roared back to win the next four games and wrap up the match in 90 minutes . Murray , who recently parted company with coach Ivan Lendl , showed signs of getting back to his best after a spell on the sidelines with a back injury . As for Djokovic , he will face Japan 's Kei Nishikori in the semifinals as he bids to win his second title of 2014 , hot on the heels of his triumph at Indian Wells . Nishikori upset Indian Wells finalist Roger Federer , coming from behind to triumph 3-6 7-5 6-4 against the two-time Miami champion . In the women 's draw , Dominika Cibulkova booked a likely place in the top-10 in the world rankings with a hard-fought 3-6 7-6 6-3 victory over Poland 's Agnieszka Radwanska . Cibulkova , from Slovakia , battled for two-and-a-half hours before finally sealing a semifinals clash with China 's world No . 2 Li Na -- who beat former top-ranked Dane Caroline Wozniacki 7-5 7-5 . It will be a replay of January 's Australian Open final , which Li won . `` This win really means a lot to me , '' Cibulkova said during an on-court interview after a win which should see her make a first ever appearance in the world 's top 10 on Monday . `` It 's always tough to play Aga , but I knew I just had to stay aggressive . If you make some mistakes with Aga you still have to stay aggressive . `` That 's the way I play , and it 's the only way to beat her . I just had to keep going . '' `` I knew before the match that this was the match I needed to win to become top 10 , '' she added . `` So it was some more pressure , but I 'm obviously very happy with the way I handled it today . '' Read more : Del Potro out for rest of 2014 ?
Djokovic knocks defending champion Murray out of the Miami Masters . The world No . 7-5 edges past long-time rival 2 6-3 in controversial match . Murray aggrieved at umpire 's call when Djokovic appeared to reach over net . Dominika Cibulkova books semifinal berth after beating Andy Murray .