Not a great start for the Celtics before the season #greenscreen #boston #robertwilliams #nba #lakers #lebron #michaeljordan #kobe #shaq #celtics #devinbooker #suns #chicagobulls #miamiheat #nets #jamesharden #kyrieirving #kevindurant #stephcurry #warriors #giannis #bucks #lameloball #zion #luka #jamorant #nbatiktok