Alberto Giraldo has insisted that he has a chance to beat Andy Murray when the pair meet in the third round of the French Open on Saturday.
Murray's fitness is currently in doubt following a problem with his back in Thursday's win over Jarkko Nieminen.
Injury doubts aside, Giraldo believes that he can push the world number four all the way in Paris.
"I will be prepared for a very tough match," said the Colombian. "I don't know the situation with Andy's back but he won so he can play.
"I can compete with him on any surface, especially on clay, I know that I have more chance. I'm playing so good and I'm feeling very well, so if he has problems it will be tough for him to play five sets."
The winner will face either Tommy Haas or Richard Gasquet in the next round.
