#4 Kei Nishikori
The World No.6 has put up a series of good performances since his fourth-round exit at Wimbledon. Nishikori made it to the final of the Rogers Cup before giving Japan its first tennis medal at the Olympics in 96 years by winning the bronze medal at the Men’s singles tournaments, beating 2008 gold medalist Rafael Nadal in the bronze medal play-off.
Nishikori will be a dangerous dark horse ahead of the US Open as his balanced play that enables him to hit powerful groundstrokes in addition to wearing out his opponent makes him a very dangerous opponent to face. If the 2014 runner-up can continue his good run of form, then he could well be a player everyone should be wary of.
What is the foot injury that has troubled Rafael Nadal over the years? Check here