Oh well, select him for Rotherham then! Perhaps being too cautious about Grimes being played but the apparent suspension of Crooks is untimely. Would like to see the Club challenge the decision on the second yellow which I thought was harsh. However, GPC said it was merited so that is that!
You can't challenge a caution.
Like GPC said, he was probably cautioned the second time for 'Persistent' offending for which it is subjectively up to the official how many he/she determines as persistent, there is no specific number in Law.
To be honest, I thought that Saturday's official did a good job considering the pitch conditions, unfortunately Crooks gave him a decision to make even if it looks like the contact was originated by their player, so he did (he had warned him a couple of minutes beforehand).
He attempted to ignore Hilda, however he kept on at him so again gave him no choice but to caution him. I honestly don't know why players do that after they have had their initial whinge, it's a needless caution