Celtics shut down LeBron James, Cavs in Game 1 blowout win Unknown 01:52 The Celtics came out firing in Game 1, securing a 61-35 halftime lead and ultimately winning 108-83. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsNHL playoffs 2019: Auston Matthews continues Game 3 domination for Maple LeafsNBA trade rumors: Lakers, Bulls had 'initial conversations' about Lonzo Ball before deadlineNHL playoffs 2019: Sharks' Joe Thornton suspended 1 game for illegal checkNBA playoffs 2019: Updated odds to win the championshipNHL playoffs 2019: Maple Leafs' Nazem Kadri suspended for remainder of first roundNHL playoffs 2019: Alex Ovechkin knocks out Canes' Andrei Svechnikov in first period fight