Kei Nishikori too good for Grigor Dimitrov

Kei Nishikori has secured a place in the fourth round of the Miami Masters with a straight-sets victory against Grigor Dimitrov.

The Japanese player got the better of his opponent 7-6(7) 7-5 in their third-round encounter.

The first set went with serve, which resulted in a tie-break, and Nishikori dominated to win 7-1.

Dimitrov was able to hold serve for the majority of the second set, but Nishikori came out on top with a late break to advance in the tournament.