Tómas Ó Sé has intimated his brother Darragh will call time on his inter-county career before the turn of the year.
Darragh won his sixth All-Ireland title in September when the Kingdom defeated Cork in the SFC final at Croke Park and his brother believes now is the time for him to retire from the Kerry set-up.
"I haven't spoken to him on it. He will probably walk away," he is quoted as saying in the Irish Sun.
"People say 'Jeez, are brothers at all?' but he'll have to make that decision himself.
"If he went out now he'd be going out on a good high, which he deserves. He probably will walk."
Meanwhile, Ó Sé has defended Tadhg Kennelly's comments regarding his tackle on Cork's Nicholas Murphy in the opening minutes of last month's All-Ireland final.
In his autobiography, Kennelly suggested he deliberately went out to tackle Murphy but he has since claimed that he did not say that. Indeed, the All-Star insists that he was misinterpreted and did not have time to proofread the chapter which included the claims.
"He went for a shoulder and it came out wrong. Between himself after winning an All-Ireland medal and being so high and his ghost writer being based outside the country, the two of them made a right mess of it," Ó Sé added.
"He should have read the book beforehand. I don't think anybody should write a book anyway until they're finished. There was a bit of sincerity in his apology and he meant it. It should be just left."
Kennelly has the option of returning to AFL club Sydney Swans, but Ó Sé is hoping the player opts to stay in Ireland.
"He'd be a huge loss for us. I'd hope he'd stay at home," he concluded.