Toronto Raptors guard Carlos Delfino injured his knee over the weekend and may miss part of the FIBA Americas Championship, according to a report in an Argentine newspaper.

Delfino injured his knee in the Tuto Marchand Cup and could sit out Argentina's game against Uruguay in Las Vegas on Thursday.

"It is the same knee I underwent surgery on two years ago and that's what makes me worry most, as I cannot stretch the leg too much," Delfino told La Nacion newspaper on Sunday.

"I know it's not serious, but I worry because I cannot get out of my mind memories about how much I have suffered with this knee."