Ginobili, the team's third-leading scorer, will miss about 12 games due to the injury suffered in the third quarter of San Antonio's loss to the Houston Rockets on Tuesday.
An MRI exam earlier on Wednesday revealed the strain, the Spurs said in a statement.
The 36-year-old Argentine national has averaged 12.1 points per game this season for a Spurs (33-12) team that is second in the Western Conference.
- Sports & Recreation
- Houston Rockets