Japan's world number 14 Kei Nishikori dumped defending champion Roger Federer out of the Madrid Masters at the third round stage on Thursday as he beat the 17-time Grand Slam champion 6-4, 1-6, 6-3.

Federer, who returned to the tour in the Spanish capital after a two-month layoff, was broken in the fifth game of the first set as Nishikori went onto seal it comfortably 6-4.