By JIMMY GOLEN
AP Sports Writer
BOSTON (AP) — Jayson Tatum had 31 points and eight rebounds, Jaylen Brown added 22 points and eight rebounds and the Boston Celtics beat the Detroit Pistons 114-103 on Friday night for their fifth victory in a row. Marcus Smart added 20 points, and Robert Williams III had 12 points and nine rebounds for the Celtics. They have won 18 of 21 since a Jan. 21 loss dropped them a game below .500. Cade Cunningham had 27 points and eight rebounds for the Central Division-trailing Pistons, who had won three in a row before falling Wednesday night to Chicago. Marvin Bagley III had 20 points and 11 rebounds, and Jerami Grant also scored 20 points.