Ndidi subbed off due to hamstring injury in the 52nd minute of Sunday's 2-2 draw to Brighton. According to manager Ruud van Nistelroooy, "Wilf, when he comes off you know there's a problem. I hope it's minor. He felt a slight strain in the hamstring. Hopefully it's not too much. We'll see how quick we can get him back"
per the Leicestershire Live.