Harry Maguire has revealed the Manchester United players still believed they would beat Atalanta at half-time of their Champions League clash at Old Trafford.

United were 2-0 down to the Serie A side at half-time but had missed several presentable opportunities before the break, notably through Fred and Marcus Rashford just before half-time.

But Maguire said belief remained high at the break and that United knew if they got the next goal victory would still be claimed. Rashford scored eight minutes into the second half, Maguire himself equalised and Cristiano Ronaldo completed a sensational comeback nine minutes from the end.

“We knew we were well in the game, we were disappointed to be 2-0 down, two big moments went against us, a set-play and a free-kick, but apart from that we created chances," Maguire told MUTV.

"We had three or four great chances and we knew if we upped it we would create more chances. They play on the front foot and they’re an attacking team, we knew the next goals would be crucial. It was the perfect second-half performance capped off with a great Cristiano Ronaldo goal."

United were spurred on by an electric atmosphere inside Old Trafford, especially in the second half, and Maguire paid tribute to the fans who played such a pivotal role in the comeback.

“When I was growing up watching the Champions League at Old Trafford you dreamt of being involved and playing in it and that's why, the atmosphere was incredible," he said.

"They got right behind us, the start of the second half we put a press on in the corner and you could feel the energy from the fans and we got the victory they deserved.

“It was my first Champions League goal, an amazing feeling, a proud moment, [in front of] the Stretford End it’s an amazing occasion and the three points are what matters, I was thinking of getting the ball back, we had the momentum."

United are now top of their Champions League group, having been bottom at half-time, and Maguire believes this could be a big night in the season.

“It’s three points, every three points in the group is massive," he said. "We got off to a slow start with the Young Boys game, we didn’t play well against Villarreal but we got the three points and tonight was a special night with the spirit and togetherness we showed. The energy we felt from the fans in the second half was incredible, the team spoke about that."