• Mavericks star out at least a month, sources say
• Dončić injured calf during Christmas Day game

Dallas Mavericks star Luka Dončić will be re-evaluated in a month due to a left calf strain, ESPN reported late Thursday night.

The five-time All-Star sustained the injury during a 105-99 loss to the visiting Minnesota Timberwolves on Wednesday. After straining the calf on a seemingly harmless play in the second quarter, Dončić headed to the locker room and missed the entire second half.