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The Nigerian women’s 4×100-metre relay team may lose its gold medal it won at the 2022 Birmingham Commonwealth Games after an athlete returned an A-sample positive doping test.

The team of Tobi Amusan, Rosemary Chukwuma, Favour Ofili, and Grace Nwokocha set the national record at 42.10s during the meet.

Nwokocha apparently tested positive for a banned substance.

Currently, the B sample is being tested.

The 21-year-old allegedly tested positive for an anabolic steroid.

The Athletics Federation of Nigeria (AFN) President, Tonobok Okowa, said, “I’m not yet aware of any positive test, but that would be shocking.”

The team finished fourth at the Eugene World Athletics Championships in July with a time of 42.22. Nwokocha has personal bests of 10.97 and 22.44 in the 100m and 200m events, respectively.