DeMar DeRozan scored 10 third-quarter points, as the San Antonio Spurs have turned a halftime deficit into an 87-83 lead after three quarters.
San Antonio trailed by as many as 15 points in the first quarter but chipped the margin to seven after a quarter and 60-54 at the half.
The Spurs used a 17-4 run to open the third quarter. After the Bucks rallied with a 12-2 run to retake the lead, the Spurs closed with a 14-7 run.
LaMarcus Aldridge leads the Spurs with 23 points, and DeRozan has 22.
Giannis Antetokounmpo and Eric Bledsoe share the Bucks’ scoring lead with 18 points each.
The Bucks are playing the second night of a back-to-back, while the Spurs have not played since Wednesday night.