Miami Heat assistant coach Keith Smart is stepping away from his duties for the second time this season to undergo treatment for a rare form of skin cancer, a team official confirmed Tuesday.
Smart, 51, initially left the team in mid-December and returned Jan. 11 after what was deemed to be successful treatment of the cancer that surfaced on the left side of his jaw.
The Heat did not offer a timeframe for how long Smart is expected to be away for this latest round of treatment.
The Miami Herald first reported Smart's latest absence from the team.