03/30/2015 09:30 am ET Updated Mar 30, 2015

Craig Sager's Cancer Has Returned, His Son Announces

Randy Belice via Getty Images

Well-known TNT announcer Craig Sager's cancer has returned, his family disclosed Sunday via Twitter:

Sager was originally scheduled to announce some of the March Madness games this month, but had to withdraw at the suggestion of his doctors. He had just made a heartfelt return earlier this month to his TNT sideline duties at the Oklahoma City Thunder-Chicago Bulls game, after an 11-month absence.