It’s probably one of the greatest ‘what ifs’ in the history of football.Former Irish striker Tony Cascarino has revealed a legendary Sir Alex Ferguson once asked him to tap up one of the game’s most prominent legendary players, Zinedine Zidane, for a move to Manchester United.The Negotiator from hell: Harry Kane’s fate lies on Levy, a man who even tricked sir Alex Ferguson”What some managers do, and I’ll tell you Fergie was the king at this, he’d always somehow find a way to send a message to somebody,” said Cascarino, who spent six years of his playing career in France with Marseille and Nancy, while Zidane was still there with Bordeaux.Zidane against Bayern Munich in May 1996 (© Regis Duvignau-REUTERS)”I was in a dressing room and met Sir Alex in Marseille. He was my manager for a day in a testimonial. I’m in a dressing room as he says to me, ‘how’s your French?'”I said, ‘it’s ok’, and he said to me, ‘have a word with the number ten’ and that number ten happened to be Zinedine Zidane!”Perhaps Cascarino’s French wasn’t so good…