NBA roundup: Bulls snap Celtics' 9-game win streak

DeMar DeRozan scored 28 points and Zach LaVine added 22 as the host Chicago Bulls beat the Celtics 121-107 on Monday to snap Boston's nine-game winning streak.

Chicago ended a four-game slide while improving to 2-1 against the Celtics this season. Patrick Williams chipped in a season-high 17 points for the Bulls, Nikola Vucevic notched 12 points and 13 rebounds and Andre Drummond grabbed 12 boards.

Boston's Jayson Tatum