US Open 2017: Injury forces Gael Monfils retirement against David Goffin
Gael Monfils retired at a set and 5-1 down against David Goffin in the third round of the US Open.
Monfils, seeded 18th, came into the game with heavy strapping on his right knee and lost the first set 7-5.
The Frenchman lost interest in the match in the second as he appeared to suffer from a leg injury.
The 18th seed quickly fell 5-0 behind, finally requesting the trainer on court for a right thigh massage. He won one game before throwing in the towel.
Monfils has suffered an Achilles injury, a knee injury and an ankle injury this season.
Goffin next faces Bosnian Damir Džumhur or Russian Andrey Rublev for a place in the last eight.