Toulon are hopeful Jonny Wilkinson will be fit to play in their Heineken Cup semi-final against Munster on Sunday, April 27.
Wilkinson hobbled off with a recurrence of a hamstring injury in the 28th minute of the his side's 29-14 quarter-final victory over Leinster at Stade Felix Mayol on Sunday.
Toulon's triumph over Leinster mean they will face Munster at the Stade VÃ©lodrome in Marseille later this month.
Toulon assistant coach Pierre Mignoni said: "Jonny has aggravated the same hamstring as before but it did not look too serious.
"Hopefully he will be OK and back in one or two weeks but we have to wait and see."
Wilkinson gave Toulon a 6-0 ahead, via two penalties,but Leinster's Jimmy Gopperth drew his side level with two three-pointers of his own by half-time before the holders proved too strong in the second half.
Mignoni added: "We made a lot of handling mistakes in the first half that put ourselves into tight spots at times but we were still dominating the game and we knew that victory was in our reach.
"Of course we were disappointed to lose Jonny early but we always had confidence in the players available."
Leinster boss Matt O'Connor said his side made too many errors which porved costly.
"We prepared well and I thought we were ready to put in a good performance but we made too many mistakes and you can't do that against a good team like Toulon, especially away from home," he said.
"At 6-6 we were looking pretty comfortable," he explained.
"Toulon started well and we managed to hold in there for the first few minutes.
"It was pretty even at half-time but then we conceded 10 points very early.
"They grew in confidence that, the fans really got behind them and the momentum went their way.
"They have some big ball carriers who feed off each other and it was pretty unrelenting out there.
"We got ourselves back into it but we're disappointed with the performance as much as the result because we are a better team than that."