Rafael Nadal needed four sets (5-7, 7-5, 7-6, 7-6) and 4:30 of play on Friday, to defeat Karen Khachanov of Russia, ranked 26th in the world, in the third round of the tournament. 'US Open. The Spaniard lost the first set and was broken in the second before taking the lead in two tie-breaks. The world number one will be opposed to Nikoloz Basilashvili, who defeated Guido Pella, again in four sets (6-3, 6-4, 1-6, 7-6).

Image credit: reuters.com