As the Celtics await the playoffs and their first-round opponent, the big question mark currently is Jaylen Brown’s health. The All-Star was clearly limited down the stretch of the regular season due to a bone bruise in his right knee.

The Celtics’ entire roster took the court at the Auerbach Center on Tuesday for Boston’s first postseason practice, according to head coach Joe Mazzulla. That included Jaylen Brown, whose injured knee is one of the top storylines as the Celtics prepare for their opening-round playoff series.