DALLAS — Kemba Walker scored 32 points and Jaylen Brown had 26 as the Boston Celtics defeated the Dallas Mavericks 109-103. 

Jayson Tatum added 24 points to help Boston prevail on a night when both teams were missing key players and struggled to shoot 40% from the field. 

The Celtics held the Mavs 15 points below their season average, including a Dallas season-low 18 in the third quarter. 

The Mavericks missed star guard Luka Doncic more than in their win Monday over Milwaukee.