Rotherham boss Paul Warne was delighted with Matt Olosunde in their FA Cup defeat to Everton.
The former Manchester United midfielder gave France left-back Lucas Digne, returning from injury after six weeks out, a torrid time.
"I thought there were some amazing performances and Matt Olosunde got the goal that his deserved, I thought he was a thorn in their side from start to finish," said Warne.
"He was good and I don't know if it was the end of the second half or extra time, but Carlo changed his shape to match us up in the middle because we were over-running them in there, which is a right compliment.
"It was a really good experience for my younger players and if I could have got everyone on, I would have. I wanted them all to get a feel of these big games and enjoy it."