With 1:27 left in the first quarter of last night’s Celtics-Hawks Game 3, Isaiah Thomas and the Hawks’ Dennis Schroder are seen jawing at each other.

Thomas then appears to hit Schroder in the face.

Schroder responds with a hard foul on Thomas after getting through a Jared Sullinger pick.

No foul was called on Thomas for the slap to Schroder’s face, but the Hawk guard was upset after the game and complained to official Zach Zarba.

“I’m not going to let nobody slap me in my face,” Schroder said according to the Journal-Constitution. “I told him that. If you want to play like that, we’ll play like that. I was mad.”

When asked if Zarba said anything in response, Schroder said, “He apologized at halftime. He said he didn’t see it. But it’s too late then.”

Thomas said after the game he wasn’t worried about being disciplined because he didn’t mean to hit Schroder in the head.

“He got mad and he was talking, but it’s playoff basketball,” Thomas told reporters. “That’s what it’s about. I’m not going to back down from anybody and he knows that.”

Hawks coach Mike Budenholzer believes the league will take a look at the incident.

I don’t believe that it merits a suspension — a fine maybe — but when the league gets involved you never know what kind of discipline they could hand down.