A sore knee kept Chris Bosh out of Raptors practice Tuesday morning, the Toronto Star is reporting.

Team officials said Bosh "tweaked" his left knee during a practice last week in Treviso, Italy. Bosh is being listed as day-to-day.

"I have to rest it," Bosh said Tuesday. "I would like to practice but I have to think about the big picture."

Bosh, who couldn't remember when he banged his knee in practice in Treviso, also isn't sure he'll be able to play in Thursday's game here against Real Madrid.

"I could play but I have to take into account it's the pre-season. No disrespect to the teams we're playing but it is the pre-season."