Novak Djokovic pulls out of Dubai Championships as Feliciano Lopez advances.

Feliciano Lopez moved into the Dubai Championships semi-finals after Novak Djokovic was forced to withdraw from their quarter-final.

A below-par Djokovic informed the umpire of his decision after Lopez took the opening set 6-3 – but the world No 1 was clearly struggling with an eye condition and could not continue.

Lopez broke in the opening game of the match and Djokovic was forced to see the trainer after three games. Lopez held onto his advantage before a second break in the ninth game gave the Spaniard the first set, before Djokovic’s dramatic exit.novak-djokovic-serbia-dubai-championships_3421603