In fairness, it was miles off the ball. If he had seen it, he wouldn't have been doing his job properly and following the game.
He's been decent at times recently and there were a few moments in that half where he did very well - excellent tackle and brought the ball forward. Need more from him though. Not sure that Embleton brings that much more physicality tbh - doesn't do much defensively.
He somehow saw Pritchard pull the Luton defenders shirt miles off the ball though. Hopefully he injured himself