ROY KEANE smirked and called Theo Walcott "so naive and young" after the pundit was asked who was the bigger club out of Arsenal and Manchester United.
Theo Walcott is making his punditry debut after retiring from the game last month.
Sky Sport posted a video filmed by Micah Richards where he asked Walcott who was the bigger club out of United and Arsenal at this moment in time.
Walcott was diplomatic in his response and said: "Arsenal finished above Manchester United so if you were to go right now, for me, I feel like they are a club that are a bit more organised, especially behind the scenes."
A smirking Keane then patted Walcott on the back and said: "So naive and young."
After Keane's intervention, Walcott then said: "But if you're talking overall, United have definitely topped that."
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Fans on Twitter were divided as they reacted to Walcott's assessment of the two clubs.
One said: "Let him cook."
Another added: "Arsenal is the bigger club right now!"
While a third wrote: "Yes of course Arsenal is bigger than Man Utd."
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But not everyone agreed.
One said: "United will always be bigger even in league 5 tbh."
While a second wrote: "big in terms of what? fanbase? Silverware? Revenue?"
To which a third replied: "Lol. We, Manchester United are bigger in terms of everything you've mentioned."
Richards also asked the duo for a prediction on the scores which they were more harmonious on.
Keane predicted a 2-2 while Walcott went for a 1-1 draw.