Arsenal goalkeeper Jens Lehmann accepted his dismissal during last night's Champions League final.
Lehmann had been sent off for a foul on Samuel Eto'o and said he understood why referee Terje Hauge had made the decision.
"He could have given advantage to Barcelona but the referee had to make a very quick decision and it is difficult for referees to make the right decisions," the German international said.
"It was fantastic (watching from the bench) until Barcelona's first goal.
"We have done very well and fought fantastically, it was a great achievement from the team to play 10 against 11 against a good side.
"But unfortunately I think their first goal was offside. We had a referee in the final who makes two decisions against us."
Lehmann had been sent off for a foul on Samuel Eto'o and said he understood why referee Terje Hauge had made the decision.
"He could have given advantage to Barcelona but the referee had to make a very quick decision and it is difficult for referees to make the right decisions," the German international said.
"It was fantastic (watching from the bench) until Barcelona's first goal.
"We have done very well and fought fantastically, it was a great achievement from the team to play 10 against 11 against a good side.
"But unfortunately I think their first goal was offside. We had a referee in the final who makes two decisions against us."
