Tommy Haas has revealed he has pulled out of this week’s Davidoff Swiss Indoors with swine flu.

Haas developed flu during ATP Stockholm last week and had to withdraw from the tournament. After seeing a doctor this week he’s been diagnosed with the H1N1 virus which means the end of his season.

Haas is confident that he won’t be sidelined with the flu for too long saying, “I am quite relaxed because I know that swine flu is a particularly strong form of flu, but when you are in a good physical condition like I am, then you can quickly beat it off."

Haas said that he’s already has the worst effects of the virus, “It was really bad for three days and I couldn't leave my hotel room,” he said. "I felt really bad."