Donovan Mitchell gets poster dunk, but Celtics get win over Cavaliers in matchup of East's best - Yahoo Sports

Donovan Mitchell gets poster dunk, but Celtics get win over Cavaliers in matchup of East's best  Yahoo SportsDonovan Mitchell puts Kristaps Porzingis on a poster with one of the dunks of the year in Cavs-Celtics  Yahoo SportsCavs' Donovan Mitchell throws down huge dunk over Kristaps Porzingis: Watch the video  Akron Beacon JournalMitchell throws down tomahawk slam over Porzingis in Celtics-Cavs  ESPNWATCH: Cavaliers' Donovan Mitchell throws down dunk of the year candidate in showdown with Celtics  CBS Sports...