French number one Richard Gasquet is a doubt for next week's Monte Carlo Masters after pulling a stomach muscle.
Source: BBC Tennis
The world number 16, who reached the semi-finals in last year's tournament, picked up the injury during last weekend's Davis Cup tie against Russia.
Gasquet lost both his singles ties in five sets as France were defeated 4-1 at home to Russia in Pau.
He will undergo a scan to determine if he will be fit to play in the Monaco event which starts on Monday, 17 April.