SRI Lankan boxer Manju Wanniarachchi has been given until November 4 to respond to his failed Commonwealth Games drugs test which could see Newport's Sean McGoldrick belatedly upgraded to a gold medal.
The 18-year-old, who trains at the city's St Josephs gym with Tony Borg, suffered a narrow countback defeat to Wanniarachchi in the bantamweight final in Delhi.
But the 30-year-old now faces being stripped of his medal after testing positive for nandrolone - although he could request a 'B' sample.
A statement from the Commonwealth Games Federation today confirmed: "Sri Lankan boxer, Manju Wanniarachchi, has been named as the fifth athlete to return an adverse analytical finding from anti-doping tests conducted during the recent Commonwealth Games in Delhi.
"The 'A' sample of Mr Wanniarachchi, who took the gold medal in the bantamweight competition on October 13, was found to contain 19-norandrosterone, a prohibited anabolic agent under category S1 of the WADA list of prohibited substances and methods.
"In accordance with the CGF anti-doping standard (ADS), Mr Wanniarachchi has been notified of the finding through the Sri Lankan Commonwealth Games Association.
"The athlete now has until November 4 to respond to the finding, after which the formal hearing process will commence."
Wanniarachchi, who returned home a national hero after becoming Sri Lanka's first boxing gold medallist in 72 years, this week pulled out of next month's Asian Games, citing injury.
Nigerian sprinter Osayemi Oludamola was the first athlete to test positive at the XIX Commonwealth Games in Delhi and was stripped of the women's 100metres title.
Sprinters Samuel Okon and Folashade Abugan, also of Nigeria, were disqualified following positive tests, while India race walker Rani Yadav was also disqualified.