"He looked tired and he's not played too many games. I'm looking for more from him and all the young players", said Robins.
"You put them in because they've usually got energy. I don't know whether it's a throwback to the glandular fever Ryan had. That's a long time ago now and he should have got over it.
"I'm not going to be critical of anybody purely because of the amount of games we've had. It's been tough to this point but as I told the players in the dressing room at Port Vale, winners find that extra strength to get across the finishing line and that's what I'm looking for."