DeMar DeRozan and the Raptors newcomers flexed their muscle against the Celtics

The Raptors may have been without point guard Kyle Lowry, whose right wrist injury is cause for concern, but All-Star backcourt-mate DeMar DeRozan made sure Toronto didn’t spoil the impressive debuts of new teammates Serge Ibaka and P.J. Tucker in a 107-97 victory against the Boston Celtics.