Barcelona coach Ronald Koeman defended his tactics after their Supercopa de Espana final defeat to Athletic Bilbao.
Lionel Messi saw red as Bilbao won 3-2 in extra time.
Koeman said afterwards, "I'm sad and disappointed because we wanted to win the final. But I still think we are on a good path and we are improving. But there is not much time to reflect.
"We have to improve defensively. You have to be more forceful, you cannot let them spin, shoot or give a pass.
"I am giving my best. I'm not the best now, nor when I win. But this defeat has been very hard.
"It's true that winning a title strengthens you. But we will show in the next games that we are on the right track."