Manchester United boss Sir Alex Ferguson admits Diego Maradona's appointment as Argentina coach has sparked a huge dressing room debate.
"It's got everybody arguing about who was the greatest ever player," says Sir Alex. "They are still arguing now."
Even Ferguson's word - the final word on all matters in these parts - hasn't been able to settle the matter.
But for the record, who would the United manager plump for?
Cristiano Ronaldo may have been crowned FIFPro World Player of the Year and be the resounding favourite to collect the Ballon D'Or, but for Fergie there is still no separating the usual suspects when it comes to recognising the game's greatest.
"It's a dead heat, depending on what era you were brought up in," he told the Manchester Evening News. "It's Pele or Maradona. The arguments can go on and on and on, but I think they are the two greatest players. The one you would maybe put in amongst them is Alfredo Di Stefano. If you look at both careers, they were World Cup winners and played in great teams. Both played for their countries at 17 years of age, which tells you what was thought of them even before they became famous.
"Pele was involved in three World Cup winning teams although he was injured in the 1962 final and didn't play. Maradona played in 1982 and was sent off, and then captained Argentina to the World Cup in 1986.
"They say the defending in the 50s wasn't the same as the 80s, but I've always said great players can score in any era.
"What if those players had all the benefits of the modern technology, fitness and the science of today? I don't think it is an issue."