For French players, building up to the Davis Cup is now the priority for the season. Gael Monfils is unsure whether he will be fully prepared to play for the team in the November final, having reinjured his knee at Metz while reaching the semifinals.

"The knee is bad," he said. "I will undergo an MRI on Tuesday."

The injury could keep him sidelined for a month and a half, he added.

Monfils, who indicated he had only played because the tournament is in France, is also entered in Tokyo and Shanghai. Along with Jo-Wilfried Tsonga and Richard Gasquet, he was expected to be among the potential singles players for France when it plays Switzerland in the Davis Cup final.