- Rafael Nadal says he will sue former French sports minister over doping claims
- Roselyn Bachelot says Nadal has 'tested positive'
- Spaniard, 29, has never failed a doping test in his career
- Tennis body calls claims 'surprising' and 'incorrect'
(CNN)Rafael Nadal has grown so tired of rumors linking him to doping that he says he will sue anyone in future who makes such allegations.