It's no secret that the Dallas Mavericks need all the guard depth they can get with Kyrie Irving out of the lineup until some point next year, but Dallas is already running into issues with their current guard pool outside of Irving, as Dante Exum has missed a majority of training camp with an undiagnosed injury (at least to the public).
Exum is a great point-of-attack defender and go-getter when it comes to getting downhill on the other end, but he's starting off training camp in a rough spot, given that he missed almost all of last training camp with a wrist injury.