Detroit Pistons center Isaiah Stewart was arrested for assault Wednesday for punching Phoenix Suns center Drew Eubanks at the arena hours before the teams played.

The Pistons said they were aware of the incident. 

“We are in the process of gathering information about what happened and what provoked it, and responding to the NBA and local authorities,” the team said.

Pistons coach Monty Williams, fired by Phoenix after last season, said he thought the Suns should not have weighed in with their statement.

“The thing is to get all of the information. The NBA will do an investigation,” Williams said. “For me to come here and make a statement would be a bit irresponsible. I know the Suns said it was unprovoked; I think that is irresponsible for sure. You really don’t know.

Phoenix police said Stewart was issued a citation and released. Stewart was already listed as out for the game because of a sprained left ankle. Eubanks had six points and eight rebounds in 18 minutes in the Suns’ 116-100 victory.

Eubanks said before the game that the altercation happened as he was coming into the arena. He said an argument started and they were chest-to-chest before Stewart threw the punch. Security intervened and Eubanks said he was fine for the game, though police say he sustained a minor injury.