Everton midfielder Conor Grant suffered concussion in action for Crewe Alexandra on Saturday.
The on loan Blues midfielder was stretchered off after 12 minutes of the Railway Men's game with Grimsby following a “collision".
Grant joined Crewe on loan until January earlier this week and was making his Alexandra debut at Blundell Park.
Crewe confirmed the Everton Academy product had been taken to hospital and was later discharged.