The San Antonio Spurs are down another starter.

Spurs guard Stephon Castle is dealing with a left hip flexor strain, an MRI confirmed on Tuesday. He will be evaluated again in one-to-two weeks, the team announced. He did not play in the team’s 111-101 win over the Memphis Grizzlies on Tuesday night as a result.

Castle went down in the first half of the team’s win over the Sacramento Kings on Sunday, and he did not play in the second half of that contest. He wasn’t clear himself when the injury happened, but he said he was dealing with some soreness in his hip.

Castle has averaged 17.3 points and 7.5 assists per game in 13 contests this season, his second in the league after the Spurs selected him with the No. 4 overall pick out of UConn. He averaged 14.7 points and 4.1 assists per game last season while earning Rookie of the Year honors, too.

The Spurs are also without star Victor Wembanyama, who is dealing with a left calf strain. He is expected to miss “a few weeks,” too. Wembanyama has averaged 26.2 points, 12.9 rebounds and 3.6 blocks per game so far this season. Both he and Castle each produced a 20-point triple-double in a loss to the Golden State Warriors earlier this month in a rare outing for a duo on the same team.

Without Castle or Wembanyama around, the Spurs still managed to get the 10-point win on Tuesday night at the Frost Bank Center. De’Aaron Fox dropped 26 points and shot 10-of-20 from the field to lead the team, and Harrison Barnes added 23 points. The Spurs were also without backup point guard Jordan McLaughlin on Tuesday night, after he went down with a hamstring strain in practice. Julian Champagnie entered the starting lineup instead.

The Spurs now hold a 10-4 record after Tuesday’s win, which marked their second straight and fifth in their last seven. They’ll host the Atlanta Hawks next on Thursday night.