Manchester United midfielder Ander Herrera hailed Jesse Lingard after his goal in tonight's 2-0 win at Derby County.
Lingard and Romelu Lukaku struck late to take United into the fourth round.
Herrera declared: "Until you score, it's difficult. I think this was one of our best games of the season. Everyone was feeling part of the game, moving the ball. I think we played amazing.
"But if you don't score, the game is always open and that's what happened. We deserved to win by more goals.
"Jesse Lingard is on fire now. He has to keep on trying to shoot. He's in that moment where everything goes well. But he deserves it, he's constantly moving.
"We can be optimistic with the second half of the season. We are Manchester United. This club is about titles."