Celtics guard Shane Larkin left Game 4 of Boston's 103-92 playoff series loss to Philadelphia Monday night with a left shoulder injury and did not return.
Larkin ran into Sixers big man Joel Embiid, who had set a pick late in the first quarter. Larkin winced and then immediately headed to the locker room favoring his left arm.
The Celtics say Larkin will undergo further tests Tuesday to determine the extent of the injury.
In his first year with the Celtics, Larkin, 25, has been a valuable sub for the team since Kyrie Irving went down for the season with a knee injury.