Paris, May 24 -- In a season when British players have been beset by fitness problems, Cameron Norrie delivered more concerning news at the French Open - a rib injury hashampered his preparation.

The British number one faces a race to be fully fit for his first-round match against Paraguay's Adolfo Daniel Vallejo on Tuesday.

Norrie, who has not practised at Roland Garros, said it might have been a mistake not to retire during his Geneva Open defeat by Argentina's Mario Navone on Wednesday.

"It is a small problem with my rib. I overdid it with the preparation and not listening to my body and my mind," Norrie, who is seeded 22nd, told BBC Sport.

"I probably should have retired. I kept pushing because I had never retired before in a match ...