As reported here last night, Heat assistant coach Keith Smart has taken a second leave of absence from the team, for another round of treatment for a rare form of skin cancer.
He was not with the team in Chicago.
Smart, who has been a head coach for three NBA franchises, missed about three weeks starting in mid-December, after the cancer was found on the left side of his jaw. Upon his return, he declared himself "in the clear."
The Heat doesn't have a definitive date set for his return, though the absence is likely to be measured in weeks, not days.
Smart joined the Heat prior to last season, in a staff shuffle in which Bob McAdoo and Ron Rothstein took other jobs in the organization.
The Heat continues its road trip Tuesday night in Brooklyn.