Mitchell scored 11 points in a row down the stretch as the Cavs overcame a 14-point deficit to maintain the NBA's best record.

The Cavs believed the next time against the reigning NBA champion Boston Celtics would be different. They were right. Cleveland avenged its November loss Sunday night, rallying from a double-digit second-half deficit and beating the short-handed Celtics,

The Cavaliers found themselves in a familiar position down 14 to the Celtics in the third quarter Sunday, but unlike last spring's East semis, they did not back down -- thanks largely to the efforts of Donovan Mitchell,