Pistorius' website, which has been posting statements from his manager and his family, still shows other Nike ads, as well as logos from Nike, Oakley and other companies.
Beaverton, Ore.-based Nike, which spent $800 million on endorsements in its last fiscal year, has found itself in tricky situations with athletes before. It dropped Lance Armstrong in October 2012 after charges of widespread doping on his cycling teams. Armstrong has since admitted to doping and has been stripped of his seven Tour de France victories, and was also dropped by other sponsors.
But Nike stood by golfer Tiger Woods after he admitted to infidelities and went to rehab for sex addiction, and restarted a relationship with football player Michael Vick once he had served time for illegal dog-fighting.