Tyson Gay's sponsorship contract shelved

The German company said in a statement that it was "shocked" at revelations that he failed a drugs test but was implementing the terms of his deal.

Tyson Gay

"Even if we presume his innocence until proven otherwise, our contract with Tyson is currently suspended," adidas said. "Adidas has a clear policy on doping and drug use."

Gay is one of the four fastest men in history and has a personal best of 9.69secs for the 100m and 19.58secs for the 200m.u00a0