An exciting FA Cup final started in controversial fashion after Alexis Sanchez scored a controversial goal after just four minutes.
Sanchez first handled the ball and with Aaron Ramsey interfering with play, Sanchez struck past Courtois.
Thibaut Courtois admitted Arsenal had a good game but insisted the goal by Sanchez should have not have stood.
“We are obviously disappointed but I want to say congratulations to Arsenal,” Courtois said. “They played a good game.
“The first goal should never have been allowed – it was clearly a hand ball and then Ramsey was offside because he was interfering in play.
“I think it was a handball even if it was maybe not deliberate. His hands were not in a natural position. At the start of every season they tell us the rules and at Manchester and now the hands were not where they should be. I think it should have been disallowed for that but not only that. If Ramsey was not in an offside position, I could go out and touch the ball but I had to stop because he was there.
“They gained momentum after that and they dominated. They could have scored one or two more and we have to accept that as well. We knew they would play well as they have the last weeks. We knew we would face a tough game.
“When we went down to 10 we tried and we scored the goal. We needed to hold on but we were maybe not paying attention. It was a very hard moment after equalising.
“As a team we were not at our best. We tried our best but it wasn’t to be. We will try again next year.”
Courtois also admitted it wasn’t a good feeling losing the FA Cup final.
“It’s not a good feeling now,” Courtois needed. “I had the same thing in Spain when I won the league and then lost the Champions League.
“We wanted to end on a high, now we feel sad. Winning is everything so this is hard to face but we have to try to forget it.”