December 16, 2020 5:19 pm Aaron Nesmith: “The NBA is a different level of competition” Aaron Nesmith explains what it’s been like to jump into the NBA so quickly as a rookie Celtics Videos 2:27 Series Preview: Celtics to face Cavaliers in Round 2 1:42 Kristaps Porzingis on his progress and timeline for injury 0:37 Joe Mazzulla: ‘Process of winning' remains the same from regular season to playoffs 0:39 Al Horford: Closing out Heat in Game 5 ‘shows growth' for Celtics 2:35 Celtics earn dominant series win over Heat