The Spurs will be without Tony Parker for their upcoming road games against Minnesota and the Mavericks.
Parker underwent an MRI exam Monday in San Antonio which revealed a sprained facet joint on his left side.
Parker left Sunday's win over Memphis in the first quarter after he took some hard falls and was suffering from reported back spasms.
The Spurs play in Minnesota Tuesday night and in Dallas Thursday. The team said he will be listed day-to-day after the Mavs game.