Harry Maguire has spoken about Jesse Lingard’s mistake which cost Manchester United defeat against Young Boys and exactly where things went wrong in their Champions League opener.A kind-looking group started with the Red Devils easiest away match, yet Ole Gunnar Solskjaers stuttering side came a cropper in Switzerland on Tuesday evening.Cristiano Ronaldo opened the scoring at the rocking Stadion Wankdorf, but Aaron Wan-Bissakas red card in the 35th minute put United on the back foot.Nicolas Moumi Ngamaleu deservedly drew Young Boys level in the second half before a careless Jesse Lingard backpass allowed substitute Jordan Siebatcheu to seal a stunning 2-1 stoppage-time win.Of course discipline is a huge part of tournament football, United captain Maguire said.For example, if this was a knockout game and we go out of the competition because we go down to 10 men, I am sure everyone will be kicking themselves.Its fortunate that it is the first game of the group and we have loads of time to bounce back from it.In terms of Jesse, obviously no footballer likes making mistakes but its part and parcel of the game.Were humans, every footballer makes mistakes, well learn from it, hell learn from it.Hell pick himself up and hell be ready to go on Sunday because thats part and parcel of football.Asked about Wan-Bissakas sending off for a rash challenge when attempting to atone for a heavy touch, Maguire added: I cant comment, really. I havent seen it back.Im pretty sure when you slow it down and you look at it a million times and see it in slow motion, I think every tackle you could probably make something for it that it was a red card.Any tackle thats a foul, you could probably say someones gone over the ball. I havent really seen it back so I cant really comment on it.Wan-Bissakas sending off was the turning point in Bern, where former Huddersfield manager David Wagners side smelt blood and attacked relentlessly.United introduced Raphael Varane and moved to a back five at half-time in a bid to stem the tide, but Solskjaers side were eventually undone in the Group F opener.Subscribe for free to TEAMtalk’s daily newsletter…I think the majority of their chances came late in the first half when we were playing a back four and we couldnt really get out to stop the crosses, Maguire said of the game plan.We couldnt defend the box well enough with the number of bodies that they were throwing forward into the box.And then weve come out in the second half and I felt we looked controlled without the ball, without being a huge threat on the counter-attack.Obviously we could have done more on the ball. But without the ball I felt they didnt really create big opportunities.The first goal is unfortunate, the deflections and ricochets. I dont know who it ends up going in off.The last goal is a mistake, which obviously happens in football, but its unfortunate again.In terms of the shape without the ball. Ifelt it was a lot better when we went to a back three slash back five. Obviously with the counter-attacks, we maybe could have done a little bit more.READ MORE: That doesnt read well at all Man Utd legend worried after seeing Solskjaer stat