Andre Onana says he is to blame for Manchester United's 4-3 defeat at Champions League opponents Bayern Munich.
Onana fluffed to hand Bayern the lead, which left United always chasing the game on Wednesday night.
"This is the life of a goalkeeper," Onana told TNT Sports.
"It's difficult. We started very good. After my mistake we lost control of the game. It's a difficult situation for us, for me especially because I'm the one who let the team down.
"We were very good on the ball, they didn't create any chances, their first shot on target I made a mistake. It was the key point and the team went down because of that mistake.
"If we didn't win today it was because of me.
"I have to learn from it and be strong. I have a lot to prove. My start in Manchester hasn't been so good, not how I want. This was one of my worst games."
United manager Erik ten Hag later reacted to Onana's comments: "It's good he's doing that but it's about the team. Mistakes are being made but you have to bounce back as a team.
"If one player makes a mistake, it's done, its gone. We have to believe as a team that we can always bounce back. Tonight we showed it.
"Stay in the game and don't allow the opponent to score a goal. It's not about one mistake. It was too easy for the player to have the shot."