Golden State Warriors head coach Steve Kerr understands basketball is a physical sport, but he definitely thinks what Boston Celtics guard Marcus Smart did to Stephen Curry was reckless and, well, not so smart.

Kerr made sure to let Smart know that as he confronted him after his play that injured Curry. Midway through the second quarter, Curry and Smart tried to recover a loose ball, but with the Warriors sharpshooter in a better position to get the possession, the Celtics vet dived for the ball–pinning down Steph's left leg in the process.

Here's the play that injured Curry:

A visibly upset Steve Kerr was then spotted on the sidelines talking to Marcus Smart, seemingly explaining that how he approached the play and dived for the ball was wrong.

Kerr has every reason to be frustrated. After all, Stephen Curry is the Warriors' best player and they can't afford to lose him to a major injury this close to the playoffs.

Curry was eventually ruled out for the rest of the night with what the Warriors are calling a left foot soreness. It doesn't look like the injury is severe since the Dubs labeled it as soreness, but fans will have to wait for an official diagnosis to determine whether it will sideline Curry for some time or not.

Hopes are high that it's not a significant injury that will bother Curry despite his history of injuries in his foot.