Dean Henderson said it was “unbelievable” to realise a dream and make his Manchester United debut as the goalkeeper helped his side beat Luton 3-0 to reach the Carabao Cup fourth round.
Henderson made a superb save to deny Tom Lockyer an equaliser after Juan Mata’s penalty had put United ahead.
Substitutes Marcus Rashford and Mason Greenwood then wrapped up the win with late goals.
“I dreamt about this my whole life,” Henderson tweeted.
“Unbelievable feeling to make my debut for the club I love. Clean sheet and a win to top it off.”
Henderson came through Manchester United’s youth system but has spent much of his senior career at the club on loan and was at Sheffield United for the past two seasons.
His impressive displays for the Blades earned him call-ups to the senior England squad – although he is yet to make his Three Lions debut – and he returned to United this summer with the aim of challenging David de Gea for the number one spot.
“You have to make saves when needed,” said Manchester United boss Ole Gunnar Solskjaer after Tuesday’s win.
“David [de Gea] has done that for years and Dean did that today.”
The victory means Manchester United will face either fellow Premier League side Brighton or Preston of the Championship in the next round.