He had been leading by one set to love and was 2-3 down in the second set when he retired after twisting over on his right foot as he ran for a forehand volley during a service game. Sobbing with pain and disappointment before his home crowd, Rosset was forced to concede the match and limped off court.
Rosset will be replaced by Lorenzo Manta, ranked 236th in the world, in today's doubles with Jakob Hlasek. His replacement for tomorrow's reverse singles has yet to be named.
The World Group tie stands at 1-1 as Hlasek later beat the Netherlands' Richard Krajicek 4-6, 6-1, 6-3, 6-4.