TORONTO - Toronto FC star midfielder Dwayne De Rosario could be out for several weeks with a hamstring injury.

The Toronto native is due to have a scan to determine the extent of the damage and has already been ruled out of home games Wednesday against Chivas USA and Sunday against Kansas City.

"He's definitely out for two (games) and it might be more than that," Toronto coach John Carver said Tuesday.

De Rosario, acquired in the off-season in a trade from Houston, aggravated the hamstring Sunday in a loss in Dallas and came off in the 74th minute.

"I think building up to the game on Sunday, it was an issue of he just had a tight hamstring," Carver said. "You saw from his reaction he did tear it. To what degree, we're going to find out once he had a scan. But he has a tear in there and that can be anywhere (from) three to four weeks.

"So I won't put him under any pressure to get him back although I could do with him on the pitch."