It's based on stats in part, and watching him in part, and his own beliefs of himself somewhat.
I really cannot be arsed to go over it (again) in any detail, but his passing is pretty naff, his touch awful, can't run on the ball despite regularly trying, his tackling is good but it's no good only having that to your bow, and for all his effort and 'trying hard' he actually does **** all. And this from a bloke who thinks he's a box to box mid.
For all the criticism Petrov's ever got, he does everything NRC does, and can actually play football too.
NRC has served his purpose, I thank him for that, move him on to the likes of Stoke or whoever will buy him.
I'm also frankly fed up that such a mediocre player has such a wealth of time spent mithering over him. Rather like the talk of Gareth Barry once he'd left, I'm hoping we can consign wasting the effort over him to the past, sharpish.
Now lets never speak of him again.