Karl-Anthony Towns sent the game into overtime with a clutch block, but he had nothing for Evan Fournier's triple in overtime.
Fournier caught 35-year-old Tayshaun Prince in isolation before pulling up from deep to win the game.
The 23-year-old Fournier is averaging 18.8 points and 4.3 rebounds in what's shaping up to be a breakout campaign for the Frenchman.