Carlton co-captain Sam Docherty is expected to make a full recovery after being diagnosed with testicular cancer for a second time.
The 27-year-old defender was first diagnosed with testicular cancer last November and played 14 games this season before being sidelined by an ankle injury.
A routine medical check-up revealed the latest cancer occurrence.
Docherty will now undergo 12 weeks of chemotherapy before a planned return to preseason training ahead of the 2022 campaign.
"It's obviously not the news we wanted to hear but the support I have from everyone around me in my family, friends and the footy club will get me through this next challenge," Docherty said.
"I am very fortunate this secondary diagnosis was detected early as part of a routine check-up.
"We now have a clear plan in place to get through this.
"I really want to get the message out there of how important it is to be mindful of your health.
"If you feel something isn't quite right, please, get checked and make sure you look after yourself."
Carlton head of football Brad Lloyd said the club is doing "everything we possibly can" to support Docherty.
"Right now, Sam's health is the number one priority and he will be given all the support he needs as he undergoes the necessary treatment to allow him to recover fully," Lloyd said.
"Sam is an incredibly resilient person, a strong character and the entire Carlton family is behind him every step of the way."
Australian Associated Press
