The 34-year-old is currently serving a 14-month doping ban, which was frozen ahead of the World Cup in Russia enabling Guerrero to play at the tournament.

"I will have an opportunity to continue playing football. I don't know how long this disqualification will last. But I'm a strong person and will fight for my career. I don't know if it will be my last match at the World Cup. I know that I can make an impact in the future and continue playing," Guerrero told journalists.

He added that he was not sure if he would continue playing for his Brazilian club Flamengo.

"I have a contract till August. Now I'm with the national team. Then, I'll have to go to my club Flamengo in Brazil. I don't know what decision they will make concerning the contract," the forward said.

Peru were knocked out of the World Cup after losing their first two Group C games to Denmark and France and will face Australia in their last match at the tournament in the Black Sea resort of Sochi on Tuesday.

"Of course, we were very disappointed, it's very difficult to face the fact that you were eliminated. But I think we spoke the same language with our opponents, the language of football, and it's perfect. I think that now I and my teammates want to bring back home at least some points. We are completely focused and calm," Guerrero said.