Quick-witted Ally McCoist made a cheeky dig at Celtic diehard Alan Brazil ahead of the Europa League clash between the Hoops and Real Betis in Seville.
Ange Postecoglou leads his squad into battle in the Europa League opener against La Liga opposition on Thursday night.
It's a big test but it's also an emotional return to the city where hundreds of thousands of Celtic fans descended for the 2003 UEFA Cup Final, winning widespread praise for their conduct despite losing out to Porto.
But there's often confusion on the total number that turned up in Spain and McCoist couldn't resist a dig at the sometimes inflated figures.
Brazil began on talkSPORT: “Tonight, Rangers have played Lyon but I don’t think Celtic have played Betis before, off the top of my head."
And a sharp McCoist replied: “No, but it is in a city you were in not so long ago.
“You took, what was it, 436 million? Was it slightly more than that?
“It keeps increasing by the month, I just forgot, that’s all it was.
“But that’s an interesting one, and they play in green and white stripes while Celtic play in green and white hoops, there’s an interesting wee fact for you.
“I’ve been in the Betis stadium, I had a trip to Seville and had a wee look about. That will be a good test for Celtic."
