Robert Williams injury update: Celtics big man upgraded to questionable for Game 7 vs. Bucks | CBS Sports Headlines Robert Williams injury update: Celtics big man upgraded to questionable for Game 7 vs. Bucks Williams has been out the last three games for Boston with a sore knee ESN FeedsThis … Continue reading Robert Williams injury update: Celtics big man upgraded to questionable for Game 7 vs. Bucks