Brown (illness) has been ruled out for Monday's matchup against the Pistons, Sean Grande of NBC Sports Boston reports.
Brown was a late addition to the injury report Monday afternoon and will ultimately be sidelined versus Detroit due to an illness. In his absence, Malcolm Brogdon, Payton Pritchard and Grant Williams figure to garner increased roles, though Jayson Tatum will presumably dominate the playmaking opportunities when he's on the court.