Grealish is getting walloped 10 times a game, he might well have bulletproof calves but that doesn't mean the rest of him is on loan from superman.
Part of why Moyes rotated last night was to provide a bit of recovery as we played on Saturday, to get a bit of match practice in for the players not used much or at all and to give a chance to make a case for more involvement. Last night was a game full of P45's (notice of being sacked/unemployed if you're outside of the UK).
His after match comments are a bit much, it was a 0-0 game apparently and Wolves weren't all that, well they got in a few times with the one touch stuff and clearly were more up for the game than we were. They got the win, scored the goals, and kicked out at our better players ALL game.
It's about desire, no one gifts you the right to play silky sexy football, you've got to fight for it, to want it enough. This side is struggling for bottle.