The World Anti-Doping Agency (WADA) has filed an appeal with the Court of Arbitration for Sports (CAS) against the clearance of Salwa Eid Naser to compete. The appeal was filed about a week after World Athletics filed a similar appeal before CAS in late November.

In October, the Athletics Integrity Unit (AIU) disciplinary tribunal had ruled that Naser had not committed an anti-doping rule violation in relation to an alleged filing failure and missed tests. The tests were missed between March 12 and April 12, 2019.

In its appeal to the CAS, World Athletics requested that the AIU decision "be set aside and that it be replaced with a new decision in which the 2019 400m world champion is found to have committed an ADRV and sanctioned with a two-year period of ineligibility.

The athlete has retained the services of Dr Emir Crowne, Matthew Gayle and Kristie Irving of Trinidad-based New City Chambers, who confirmed that WADA had also appealed the ruling.

"I can confirm that WADA has launched a separate appeal against the decision of World Athletics' Disciplinary Tribunal in the Salwa Naser matter,” Dr Crowne told Sportsmax.TV.

“We will be asking that WADA's appeal be consolidated with World Athletics' appeal, and that the hearing be open to the public."

The Nigerian-born athlete who now competes for Bahrain ran the third fastest time in history while winning the 400m title in Doha. Only Marita Koch (47.60) and Jarmila Kratochvílová (47.99) have run faster than her 48.14. Naser also had a missed test against her name in January 2020, a strike that still stands.