An MRI showed no structural damage in Tim Duncan's knee or ankle and he is listed as day-to-day. Duncan officially has a sore left knee and a 'mild' sprain in his right ankle. The Spurs will almost certainly play it safe with their prized big man, which leaves him up in the air for Wednesday's game, but this is nearly a best-case scenario considering how bad the injury could have been. Tiago Splitter will be the primary beneficiary if Duncan misses more games, with extra minutes for guys like Boris Diaw, Matt Bonner and DeJuan Blair.