Marcus Smart injury: Celtics star expects to return Thursday vs. Nets after missing 18 games with calf strain | CBS Sports Headlines Marcus Smart injury: Celtics star expects to return Thursday vs. Nets after missing 18 games with calf strain Smart hasn’t played in a game since Jan. 30 ESN … Continue reading Marcus Smart injury: Celtics star expects to return Thursday vs. Nets after missing 18 games with calf strain