Joao Felix has shrugged off his false start at Chelsea.
The on-loan Atletico Madrid attacker was sent off on debut and banned for three games.
He told AS: "I'm taking it easy, because that's how football is. These things happen. It's like missing a goal or a penalty kick.
"They gave me a red card, but that happens in football. My world didn't collapse afterwards, because I have the whole world in front of me.
"These are things that I am used to. Of course it's not impressive when it was in my debut, but I'm taking it easy because things are going well and I'm full of confidence in my abilities."