Brown (knee) has been ruled out for Wednesday's game against the Spurs, Taylor Snow of the Celtics' official site reports.
Brown will miss a second straight game due to right knee soreness. Boston's decision to hold out the forward is likely a precautionary measure, considering he'll have the NBA All-Star break to get some much-needed rest before the team's next game Feb. 20 in Philadelphia. Sam Hauser and Payton Pritchard should get bumps in playing time Wednesday due to Brown's absence.