Grant Williams is suspended for ‘recklessly making contact with and directing inappropriate language’ toward an official in Monday’s loss.

The Bulls come back from a 19-point deficit in the first quarter to beat Boston, which had won its first three games of the season.

Marcus Smart says he took a mature approach to his confrontation with Joel Embiid on Tuesday. ‘I could have cracked his head open but I didn’t.’

The defending Eastern Conference champions gave interim coach Joe Mazzulla a victory in his debut.

The suspension of Ime Udoka put a cloud over the start of the season for the Celtics who, under interim coach Joe Mazzulla, hope to make another deep playoff run.

Danilo Gallinari tore an ACL in the offseason, but is working hard to return as soon as possible.

Luke Kornet, who is expected to play a key role in the front court with Robert Williams III out, is recovering from an ankle sprain.

Grant Williams, who became a key player for Boston last season, is in the final year of his rookie contract, with the deadline for an extension coming on Oct. 17.

Smart, the reigning NBA Defensive Player of the Year, has helped the 20-year-old second round pick learn the ropes.

Blake Griffin was signed to help fill in the void left by an injuries to Robert Williams III, Danilo Gallinari and Luke Kornet.