Tobias Harris and Dewayne Dedmon, the Magic's starting small forward and power forward, respectively, sprained their ankles in Orlando's loss to the Houston Rockets on Tuesday.
In 54 starts in the 2014/15 season, Harris has averaged 17.5 points, 6.4 rebounds, and two assists on 47.2 percent shooting. Dedmon is a newer addition to Orlando's starting five, making eight starts. The former USC Trojan has averaged 5.4 points, eight rebounds, and 1.1 blocks in those appearances.
Willie Green, Evan Fournier, and Devyn Marble are also out for the Magic.
Tipoff between Orlando and Dallas is set for 8:00 PM Eastern on ESPN and Fox Sports Florida.