I think it should be Petrov and NRC, and I think NRC has copped an unfair deal lately, but I will wait till after the game to criticise. Petrov is much better in midfield than NRC and Sidwell but NRC is better than Sidwell.
We are not the manager, we don't know what goes on NRC might put no effort in in training where as others work hard, it is not for us to judge or at least not until after the game.