The San Francisco 49ers are suing former star pass-rusher Aldon Smith for more than $340,000 in signing bonus money stemming from his nine-game suspension in 2014 for failing a drug test.
Kimbo Slice and Ken Shamrock both failed their prefight drug screens at last month's highly publicized Bellator 149 event, according to multiple reports.
Maria Sharapova announced that she failed a drug test at the Australian Open, but she does not yet know her penalty.
Three minor league pitchers, including Giants right-hander Dylan Brooks, have been suspended under baseball's minor league drug program.
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.
