Intro:

Wins for Kei Nishikori and Novak Djokovic At Miami Open on Tuesday (March 31).

Script:

Kei Nishikori was on his game as the fourth round continued at the Miami Open.

The World No 5 was playing the ever-improving David Goffin, and Nishikori took the first 6-1.

The Belgian started 2014 outside the top 100, yet now finds himself in the top 20.

However, this looked to be one step too far as Nishikori was hitting some pulsating backhands from the baseline.

Nishikori making light work of the Belgian winning 6-1, 6-2 and will now face John Isner in the quarters.

Not many have given Novak Djokovic a contest recently,

However Alexandr Dolgopolov was in good touch and took the World No 1 to a tiebreak in the first which he won 7-3.

It got worse for Djokovic as he went a break down early in the second set at 4-1, and he looked on course for his first ever loss to the Ukrainian.

Yet he responded and took the set 7-5 to level up the match.

Dolgopolov required treatment after the second set and lost 36 of the final 41 points.

Djokovic now plays sixth-seed David Ferrer.