Head coach Brad Stevens said Smart (ankle) is unlikely to play in Friday's game against the 76ers.
EDGE Analysis
The severity of Smart's injury is currently unknown, but with the Celtics playing their third game this week already, holding him out of Friday's contest isn't too much of a surprise. In Smart's absence, Terry Rozier will likely see extended minutes off the bench, with rookie Semi Ojeleye also potentially seeing added minutes Friday. Smart's next opportunity to return won't be until Tuesday, so he'll have plenty of time to nurse the injury.