The veteran comes off contract at the end of the season.
He told AS: "After all the effort I've put in to fight for my place and play, I'm not going to throw the towel in now.
"I know every game I play could be my last with Atlético. Maybe not, but that's how I feel. I play every game as if it were my last. Nobody's gifted me anything, not at all. I came in the winter transfer window and my first games were against Real Madrid and Barcelona.
"I scored, but that wasn't enough to get a starting spot. I then finished the season as a starter. The next season was similar and I ended up playing, having started off at a disadvantage. I'm here on my own merits and because of my performances."