Arsenal goalkeeper Aaron Ramsdale admits he was at fault for PSV's second goal in their Europa League defeat.
PSV won 2-0, with Ramsdale disappointed with the Dutch's second.
"We couldn't play our normal game from start to finish. We probably didn't work as hard as them without the ball," said Ramsdale.
"We conceded a goal, and then I made a mistake, and then we were behind 0-2, and it was almost an impossible challenge away from home.
"Credit to them. They played really well. The big boy up front (Luuk de Jong) led the team and the supporters. It gave them a boost.
"We will go through the match in the next few days and then we will learn from it, and then we have one more match where we have to try to secure first place."