Confident Marcus Rashford told Paul Pogba he was going to score seconds before bending his free-kick into the far corner.
Manchester United take a 1-0 advantage into the second leg of their Europa League semi-final with Celta Vigo next week thanks to Rashford's strike.
The teenage sensation curled a free-kick across the face of the goalkeeper and into the far corner.
While there are criticisms of Celta goalkeeper Sergio Alvarez, Rashford was always pretty sure that he was going to score.
Pogba, who would ordinarily be on free-kicks in those positions, says that the team have confidence in Rashford's ability - and he certainly has belief in himself.
Speaking to BT Sport, Pogba said: "On the pitch, we don't look at the age. He's been doing great this season and we trust him.
"When he took that free-kick, he told me he was going to score and he put it in so that's the most important thing.
"We had a lot of chances, it's happened a lot of times this season, but we have to carry on working on it and keep creating chances."
United boss Jose Mourinho has revealed that Rashford has been staying behind after training to practice free-kicks and was duly given his chance to impress.
Mourinho says that without Zlatan Ibrahimovic on the pitch and given the angle of the ball, it was a perfect opportunity for Rashford to shine.
"Marcus Rashford is a 19-year-old kid who is in love with football," Mourinho said.
"He stays after training for half-an-hour to practice taking free-kicks and waits for the opportunity.
"He trains a lot, he practices, he enjoys the extra work.
"Zlatan is not here, that position is not Paul's favourite position, so he took it.
"It's a great fee-kick because the ball moves really really fast, the goalkeeper makes a little movement, and I think with the speed of the ball it's impossible to save."