D'Arcy too old to replace Tubridy on the Late Late Show, says Kenny
D'Arcy left Today FM late last year, returning to former employer RTÉ for a reported €500,000.
The radio host will front a new Saturday night chat show this autumn.
And there has been a great degree of speculation that the state broadcaster is grooming D'Arcy to succeed Tubridy (42) as host of the juggernaut programme.
But former host, Pat Kenny, believes D'Arcy (50) will be too old for the post by the time Tubridy has finished his tenure.
"I don't think Ryan is going anywhere soon and Ray is older than Ryan, by quite a stretch," he said.
"I think they would go for someone a bit younger than Ray."
Kenny also stated it was "unlikely" D'Arcy will take over John Murray's former RTE Radio One slot.
"I don't think it will be Ray because that hour-long show is too short for his ambitions in that direction," he said.
"To give him more air time they would have to shift [Sean] O'Rourke, and I don't think they would do that."