Luka Doncic will miss at least one month with a left calf strain, sources told Shams Charania of ESPN.
Doncic suffered the injury during the Mavs' Christmas Day game.
Doncic had a contusion on the same calf earlier this season.
Doncic is averaging 28.8 points, 8.5 rebounds and 8.1 assists in 21 games this season.