Live Updates: Celtics vs. Knicks, Warriors vs. Lakers on Prime  NBA2026 NBA playoff picture: April 9 clinching scenarios, tiebreakers for postseason contenders; Will Celtics clinch Atlantic crown?  Yahoo SportsCeltics could be without 4 starters in game against Knicks  CelticsBlogCeltics at Knicks preview: Can Boston lock up the No. 2 seed?  The Boston GlobeKnicks vs. Celtics odds, prediction, spread, time: 2026 NBA picks for Thursday, April 9 from proven model  CBS Sports