I've worked with Nedum loads. I've worked with lots of ex City players before, but never hit it off with one like I did with him. Probably helps that he's about my age admittedly, but we're just similar people I'd guess. He's ace and always up for a chat away the city work stuff to the extent that he's not far off from me labelling him a friend really. A colleague at very least. Either way, he's a genuinely lovely bloke. Loves nothing more than a good chat about anything really. Oh and obviously he's a huge blue. Amazed that anyone would doubt that.
Oh and I don't think his dislike of Mancini is based on anything other than Mancini just being an absolute arse to him, as he was with loads. Hardly unknown that Mancini could be a very, very difficult character so not sure it's any deeper than that and pretty understandable in general given we've all had a boss we've disliked at soke point.