Photo: Boston Celtics/Twitter

The Boston Celtics center Robert Williams said that the team’s head coach Joe Mazzulla is both a supportive and challenging coach.

“Well he has a even level of building you up and tearing you down at the same time,” said Williams. “So, even though he encouraged me, he even challenges me all the time.”

Williams was outstanding during the Celtics’ 129-121 win over the Atlanta Hawks, and the team will return to Boston with a chance to close out the series.