Lively -- who is expected to be out 2-3 months -- had missed three games with what was listed as an ankle sprain

The loss of Lively for an extended period of time is a brutal blow for a Mavericks team dealing with numerous injuries.

Mavericks center Dereck Lively II has suffered a stress fracture in his right ankle and will be reevaluated in four weeks, the team announced Wednesday. ESPN reported that Lively is expected to miss two to three months. A Philadelphia native, the 7-foot-1 Lively starred in high school at the Westtown School.