Micah Richards, who's proving himself a world-class Keane-baiter, put the question to him as the pair were doing analysis of Manchester City vs Liverpool on Sky Sports. "Who would you rather play for: Pep or Klopp?" asked Richards, casually.
"How long have I got?" replied Keane, before adding the stinger.
"I probably wouldn't want to play for any of them, because that means I'd have to play for Liverpool or Man City, which wouldn't really suit me."
Ouch. Keane is a legend at arch rivals to both clubs, Manchester United, having spent 13 seasons at Old Trafford. His temperament was so volatile that he'd fall out with his manager, teammates and even fans (he famously dubbed the quieter supporters the "prawn sandwich" brigade).
However his commitment to the club on the pitch - and apparently off it - was there for all to see.
Richards naturally explodes into laughter at Keane's dig at City and Liverpool, while Jamie Carragher remains quiet. However Keane goes on to clarify how highly he really does think of both managers.
"You talk about your teams reflecting your managers," he adds. "I think both teams did that well today with the hunger and desire from both teams, and we saw that with the managers."
Both Klopp and Guardiola could undoubtedly do with a player like a prime Keane because, well, who couldn't? His reputation as a hot-headed hardman sometimes obscures the fact that he was one of the most influential captains and central midfielders of his era.
As a pundit he tends to divide opinion, with some football fans enjoying his ruthless straight-talking while others claim he's become a parody of himself.
How much dry humour he's hiding in his shots at other teams - such as when he chastised Aston Villa for celebrating Premier League survival - is up for debate. But it's pretty clear this was just some light-hearted ribbing at the expense of two rival clubs.
Richards also managed to catch Keane in the act of fixing his make-up on Sunday, ahead of the 1-1 draw between City and Liverpool. But the Irishman was back to his usual self when he was tearing strips off "car crash" Kyle Walker and accusing Sergio Aguero of being overweight.
Never change, Roy. Not that we ever suspect you would.
All imagery: Sky Sports/PA Images
Chosen for YouChosen for You
Most Read StoriesMost Read