The ref obviously didn't see it, but the worrying thing is that he's then thought to himslef
"Ok, not sure what happened there as I was busy doing my little jog into the box. Which went great btw. Why thank you, I have been on the slim fast. But to avoid looking like a dickhead I'll just let them play on. They are all professional footballers anyway, and what's a more honest profession that that?"
He then evidently gets a message via his earpiece along the lines of "You dickhead" from the 4th official.
Do have to feel for Wigan here. Least Yakubu could have done is come clean post match - he may have meant to tap it but he didn't. Instead he talks about how he can't recall what happened and that they deserve the luck anyway? Luck? Since when does cheating and getting away with it count as 'being lucky'?