[Hattifnatt]

My guess is he had:

A [img]/images/graemlins/diamond.gif[/img] Q [img]/images/graemlins/diamond.gif[/img]
or maybe
A [img]/images/graemlins/diamond.gif[/img] J [img]/images/graemlins/diamond.gif[/img]

I don't think he limped with aces because then he would certainly has bet the flop.