Donovan Mitchell scored 29 points and Evan Mobley had 21 points and 10 rebounds to help the Cleveland Cavaliers beat the top-seeded Boston Celtics 118-94 and tie their second-round playoff series at one game apiece. Two nights after losing by 25, the Cavaliers seized the lead in the third quarter and answered with a blowout of their own. Mitchell scored 16 in the third. Jayson Tatum scored 25 for Boston, and Jaylen Brown added 19 points. The series moves to Cleveland for Games 3 and 4 on Saturday and Monday, with a return trip to Boston for Game 5 on Wednesday.