September 30, 2021 4:42 pm Al Horford: “I feel as good as I've felt in NBA career” Al Horford explains how his extended time off last year helped him get ready for this upcoming season back in Boston Celtics Videos 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 4:35 Mazzulla – Part Two: Sacrifices and Mindset