Dwyane Wade scored 30 points for Miami, which lost for the second straight night. Wade was honored at halftime, along with Tim Hardaway and Alonzo Mourning, for winning Olympic gold
Heat guard Daequan Cook limped into the locker room with 4:05 left, suffering a left thigh injury after a hit from Dallas' James Singleton. Cook left the arena on crutches, unable to put weight on his leg.
"They wouldn't miss,'' Wade said. "Our best game would have had trouble winning tonight.''
Michael Beasley finished with 18 points and 10 rebounds for Miami