Last updated on .From the section Athletics

Kelly-Ann Baptiste

Trinidad and Tobago sprinter Kelly-Ann Baptiste has failed a drugs test and will not compete at the World Championships in Moscow.

Baptiste won 100m bronze in the World Championships in Daegu two years ago and finished sixth at London 2012.

The 26-year-old was third in the 100m at the Anniversary Games on her return to London's Olympic Stadium last month.

Former men's world champion Tyson Gay and ex-100m world record holder Asafa Powell failed tests earlier this year.