Leicester boss Richard Cockerill has revealed Tom Croft was not seriously hurt in the 34-8 LV= Cup victory over Wasps.
The 27-year-old, who was making only his second start since returning from eight months on the sidelines after a shoulder operation, suffered a back injury and lasted only 11 minutes.
"Crofty just got a knee in his back and it was a bit bruised and a bit tight in the soft bit between his hip and spine," Cockerill said.
"It was just bad luck, one of those things. He needed to play but that's life. It's nothing serious, just a bang."
Croft's team-mate Tom Price, 19, was taken to hospital after being carried off on a stretcher with a neck injury on his debut.
"He is at the hospital. He is not very good. It was his neck. He was unconscious and struggling. He has got movement in his hands and feet and, hopefully, he will be okay," said Cockerill.
"He is over at the hospital being dealt with, so it's not ideal for a young guy who was meant to be playing for England Under-20s next week."