World 100m champion Christian Coleman has had his two-year ban for missing three drug tests reduced by six months following an appeal to the Court of Arbitration for Sport (Cas).

The 25-year-old American will still miss the Tokyo Olympics starting in July as the ban runs until 14 November.

He can, however, defend his world indoor and outdoor titles next year.

Cas “partially upheld” the Athletics Integrity Unit’s (AIU) ruling but found his “degree of negligence to