Jayson Tatum powers Celtics past Raptors 105-96; Toronto drops fourth straight

TORONTO — Jayson Tatum had a double-double to power the Boston Celtics past the Toronto Raptors 105-96 on Monday. Tatum finished with 19 points, 14 rebounds and six assists. Derrick White went 5-for-11 from three-point range in a 22-point performance as Boston (31-9) shot 41 per cent from beyond the arc. RJ Barrett of Mississauga, Ont., scored 24 points and pulled down nine boards as Toronto (15-25) lost its fourth straight. Barrett made a layup and Scottie Barnes followed that up with a six-foot jump shot to cut Boston’s lead to 29-25 at the end of the first quarter. Barrett and Celtics guard Jrue Holiday led all scorers with 10 points apiece at the end of one. A 9-0 run…