December 1, 2020 12:03 pm Danny Ainge looking forward to seeing guys step up with Kemba Walker out Danny Ainge discusses how the Celtics are managing Kemba Walker’s knee condition and how the point guard missing the start to the season will create an opportunity for others. Celtics Videos 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 0:51 Jayson Tatum: ‘Lazy to say teams can out-tough us'