Haas demands answers
Tommy Haas is desperate to discover whether the illness he suffered during a recent Davis Cup trip to Moscow was the result of poisoning.
The International Tennis Federation are investigating claims from Germany's Alexander Waske that his Davis Cup team-mate Haas was poisoned during the semi-final defeat to Russia.
Haas is to undergo medical tests to determine whether his illness was the result of foul play, and told German newspaper Bild: "Now I want to know whether it was a poisoning and can prove it."
Referring to his illness in the Russian capital, he added: "I sat - or better laid - six hours on the toilet. I have never felt so miserable in my life - I was really scared."
Doubles specialist Waske said: "I spoke with a Russian from Moscow at the Davis Cup. He said completely casually that Haas had been poisoned."
