San Antonio Spurs rookie Dylan Harper is expected to miss multiple weeks with a left calf strain, sources told ESPN's Shams Charania.
Harper reportedly underwent an MRI on Monday that revealed the injury.
The 6-foot-6 guard suffered the injury during Sunday's contest against the Phoenix Suns.
San Antonio is already without starting point guard De'Aaron Fox.
The Spurs selected Harper with the No. 2 overall pick in this year's NBA draft.
Harper has been a spark plug off the bench early on, averaging 14 points, four boards, and 3.8 assists through his first six appearances.
