American tennis player Madison Brengle has launched a $10m (£7m) lawsuit against the sports chiefs over what she says are permanent injuries caused by anti-doping tests.
Brengle filed a suit this week seeking damages from the Womens Tennis Association (WTA), which runs the elite tour, and governing body the International Tennis Federation (ITF).
The 28-year-old, who has won around $2m (£1.5m) prize money during a 10-year career, alleges that she was repeatedly blood-tested using needles despite her suffering from a rare reaction to syringes.
Read more: Eugenie Bouchard sues US Tennis Association
“Tennis authorities ignored evidence of her professionally diagnosed condition and refused to provide alternative testing or a medical accommodation, instead subjecting Brengle to testing that caused her to withdraw from tournaments and has now resulted in permanent swelling and weakness in her serving arm and hand,” said her lawyer Peter R Ginsberg.
Brengle, who is currently ranked 83rd in the world but reached a peak of 35th in 2015 before her condition was diagnosed, is seeking a payout that could exceed $10m.
She said: “I am bringing this action in an effort to force those who control the sport I love to understand that players are not commodities and should be treated with respect and dignity.”
The lawsuit follows former Wimbledon finalist Genie Bouchards settlement with the US Tennis Association in February after she sued them over a fall at the 2015 US Open.