Bucs RB Doug Martin has opted not to appeal a four-game suspension and will begin serving it immediately, after a positive drug test.
The Nevada State Athletic Commission suspended mixed martial artist Wanderlei Silva for three years at a re-sentencing hearing Wednesday.
Floyd Mayweather strongly denied any wrongdoing related to his receiving an IV mix of saline and vitamins -- banned under WADA guidelines -- before his fight against Manny Pacquiao.
Floyd Mayweather took an IV of saline and vitamins that was banned under World Anti-Doping Agency guidelines before his fight with Manny Pacquiao, according to a SB Nation report.
Chargers tight end Antonio Gates says he has no idea how a substance that triggered a positive test for performance-enhancing drugs got into his body.
Michael Koncz, Manny Pacquiao's adviser, told ESPN.com Thursday that Floyd Mayweather Jr. has declined to agree to terms for a penalty that would cost either man $5 million in the event in the event of a failed drug test before or after their May 2 fight.