Dan Gilbert's son to undergo major brain surgery

NEW YORK, NY - MAY 21: Owner Dan Gilbert and Nick Gilbert of the Cleveland Cavaliers poses for a photo after winning the overall number one pick during the 2013 NBA Draft Lottery on May 21, 2013 at the ABC News' 'Good Morning America' Times Square Studio in New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 2013 NBAE
Jesse D. Garrabrant / National Basketball Association / Getty

Basketball will take a back seat for Cleveland Cavaliers owner Dan Gilbert this week, as his son, Nick, is scheduled to undergo major brain surgery at a Detroit-area hospital, a team spokesman told ESPN's Dave McMenamin.

Nick Gilbert, 21, was born with a nerve disorder called neurofibromatosis, which leaves the body vulnerable to tumors.

He already had a life-saving brain procedure more than 10 years ago, and has been treated with chemotherapy on and off for 15 years, according to McMenamin.