McGary spent two years at Michigan and was Oklahoma City's top draft pick in last month's NBA draft, going 21st overall.
The signing was announced Saturday by Thunder general manager Sam Presti. Terms of the deal were not released.
The 6-foot-10, 255-pound McGary averaged 9.5 points and 8.3 rebounds per game as a sophomore last season after helping the Wolverines to the NCAA title game as a freshman.
- Sports & Recreation
- Oklahoma City Thunder
- Mitch McGary
- Oklahoma City
- NBA draft