Celtics Rewind February 28, 2021 7:32 pm Kemba throws it up to Time Lord for the alley-oop dunk vs the Wizards Kemba Walker throws it up for Robert Williams who slams home the alley-oop dunk during the first quarter against the Wizards. Celtics Videos 1:07 Maxwell shares ‘inside information' on the latest with Porzingis 2:38 Joe Mazzulla: Kristaps Porzingis will be re-evaluated next week 2:20 Can the Celtics win without Kristaps Porzingis? 1:43 White on being in ‘the zone': ‘It's unreal … the basket gets huge' 0:48 White credits Mazzulla, teammates for confidence in big moments