The world No. 1 will face Marin Cilic in the Wimbledon quarterfinals.
The Russian defeated CoCo Vandeweghe, 6-3, 6-7 (3), 6-2.
In May, the world No. 8 had minor surgery on his right foot.
The Argentine has played just two tournaments this year.
The two had worked together since October 2013.
Seven highlights from Manic Monday at Wimbledon.
In upsetting Petra Kvitova, Jelena Jankovic finally found her grass-court groove.
Forty years after one of the biggest upsets in tennis, a look back at the men that made the match.
Prodigies and Wimbledon go hand in hand. Is Ana Konjuh the next teenager to go deep at SW19?