Jayson Tatum scored 27 points, Kemba Walker and Jaylen Brown added 20 apiece, and the Boston Celtics overwhelmed the visiting Los Angeles Lakers 139-107 Monday night. Enes Kanter had 18 points (all before halftime) and 11 rebounds off the bench as the Celtics snapped a three-game losing streak. Gordon Hayward chipped in 16 points.