Dallas Mavericks guard Kyrie Irving is expected to miss at least three games with a lumbar sprain in his back and could be out as many as two weeks, ESPN reported Monday.

Irving missed two of the Mavericks’ past three games. He sat out last Monday’s loss to the Kings with right shoulder soreness and Friday’s loss to Cleveland due to an illness. In 30 games this season, Irving has averaged 24.3 points, 4.9 assists and 4.6 rebounds.

Dallas guard Kyrie Irving is expected to miss one to two weeks with a bulging disk in his back, and Mavericks coach Jason Kidd said a timeline for his return was not immediately known.