One of the Dallas Mavericks' key X-factors suffered an alarmingly serious injury at training camp, and this throws a huge wrench into Dallas' rotation.

Dante Exum, who battled through a plantar injury last season to become a trusted part of the Mavericks' rotation, is out again, this time with a wrist injury. The Mavericks announced the right wrist injury,

The Dallas Mavericks were dealt a tough blow this week as guard Dante Exum reportedly suffered a serious injury to his right wrist during training camp. The news was first broken by Shams Charania of The Athletic,