Marcus Smart injury update: Celtics guard ruled out Wednesday vs. Pistons after hurting ankle in 48-point win | CBS Sports Headlines Marcus Smart injury update: Celtics guard ruled out Wednesday vs. Pistons after hurting ankle in 48-point win Smart took both free throws before heading to the locker room ESN … Continue reading Marcus Smart injury update: Celtics guard ruled out Wednesday vs. Pistons after hurting ankle in 48-point win