(Reuters) -Surinamese sprinter Issamade Asinga has lost his appeal against a four-year doping ban after claiming that contaminated Gatorade gummies he received as part of a prize caused his positive test.

The Court of Arbitration for Sport (CAS) upheld the World Athletics sanction on Thursday, confirming that the 20-year-old remains ineligible from May 2024, with credit for his provisional suspension served since August 2023.