Jannik Sinner, the world's top-ranked tennis player, tested positive twice for a banned anabolic steroid in March but will not be suspended. The International Tennis Integrity Agency announced the ...

With less than one week to go before the start of the U.S. Open, one of four Grand Slam tennis tournaments, The International Tennis Integrity Agency (ITIA) announced that Jannik Sinner of Italy ...

Two-time Olympic finalist Erriyon Knighton was banned for four years on Friday in a doping case of an anabolic steroid that almost certainly rules the 21-year-old United States sprinter out of the ...

On Tuesday, it was revealed that the Russian mixed martial arts fighter Kirill Sidelnikov tested positive for the steroid Stanozolol after he lost to Paul Buentello at Affliction: Day of Reckoning in ...

Just one student-athlete of 2,083 tested positive for steroids in the last round of tests, according to a University Interscholastic League report for Fall 2010 released Thursday. There was also one ...