Tiriac on doping: "Cheating has been legalized".

Ion Tiriac, former Romanian tennis player and manager of the Madrid Masters 1000, sent a letter to L'Équipe newspaper denouncing the current anti-doping system.
In particular, he calls into question the TUEs (Therapeutic Use Exemptions), which he considers too broad and too easily abused.
He declares: "The day the World Anti-Doping Agency accepted the first so-called 'TUE' exception for an athlete to take blacklisted substances, that's when cheating was completely legalized.
The system collapsed. There are thousands of athletes, and probably hundreds in my sport, tennis, who have up to 14 or 15 exceptions and still don't test positive.
It's cheating the sport, cheating yourself, cheating the other competitors and cheating the public. The game is rigged, my friends, and rigged to the core.
If we allow these TUEs, which can give one player a 10-20-30% advantage over his competitor, what chance does his opponent have?
What reality does the spectator see? How will the 'clean' player train tomorrow after his defeat to improve?"