FILe - In this Aug. 25, 2011 file photo, U.S. sprinter Tyson Gay wears Adidas footwear around his neck while posing for photographers after speaking at a news conference for the World A

 

              FILe - In this Aug. 25, 2011 file photo, U.S. sprinter Tyson Gay wears Adidas footwear around his neck while posing for photographers after speaking at a news conference for the World A
FILe - In this Aug. 25, 2011 file photo, U.S. sprinter Tyson Gay wears Adidas footwear around his neck while posing for photographers after speaking at a news conference for the World Athletics Championships in Daegu, South Korea. Adidas has suspended its sponsorship of Gay after the American sprinter's positive doping test. (AP Photo/Matt Dunham, File)