MILWAUKEE, WI -- Robert Williams played only 13 minutes in the Celtics 131-125 OT loss to the Bucks on Tuesday night. The Celtics were down four starters and Joe Mazzulla decided to play Williams off the bench.\n\nWhen asked about the change Mazzulla said he \u201cJust felt like making it.\u201d\n\nCLNS Media's Bobby Manning reports LIVE from Fiserv Forum in Milwaukee following the Celtics shorthanded loss to the Bucks. \nLearn more about your ad choices. Visit megaphone.fm/adchoices