Rafael Nadal takes ‘step forward’ in pursuit of Federer’s grand slam record

(CNN)Rafael Nadal took a “step forward” in his pursuit of Roger Federer’s grand slam record as he advanced to the semifinals of the US Open. The other three men’s semifinalists — Berrettini, Grigor Dimitrov and Daniil Medvedev — have never played in a grand slam final. “Today I make a step forward, in my opinion,” said Nadal in his on-court interview at Flushing Meadows. “That match gives me confidence. Two matches in a row against two tough opponents. “That’s a moment to increase a little bit more the level, and I really believe that I can do it.” READ: US Open villain Daniil Medvedev keeps on winning, reaches semifinals Front runner The quarterfinal was far from a walk in the …