McGoldrick, 18, lost the bantamweight final on countback but the Sri Lankan has tested positive for nandrolone.
Meanwhile, Sharks fly-half Herkie Kruger is facing a two-year ban after testing positive for the anabolic steroid nandrolone.
The Inter Milan striker tested positive for the banned substance Nandrolone after a league match against Udinese on 27 September.
The Czech player was exonerated when the ATP discovered its trainers had been administering supplements that may have contained nandrolone.
An investigation was launched by men's tennis' governing body when Bohdan Ulihrach was given a two-year ban after testing positive for nandrolone.
In October 2006 he was given a two-year suspension for testing positive for the banned steroid nandrolone but this was later rescinded on appeal.
British athletics' governing body say it hopes this project will "help to increase our understanding of the current issues surrounding nandrolone and its metabolites".
It was unique to tennis, as no other sport indicated the same high number of nandrolone metabolites, still less with a common analytical fingerprint.
Karatantcheva was suspended from tennis for two years in 2006, after she tested positive for nandrolone at the 2005 French Open when she was 15.
Former Olympic champion Linford Christie, Scottish sprinter Dougie Walker, hurdler Gary Cadogan and 400m runner Mark Richardson have all tested positive for nandrolone over the last 14 months.
Shoaib last week criticised the tribunal that banned him for two years and Asif for one after they tested positive for the banned steroid nandrolone in October last year.
Some leading scientists believe that Wada should change the rules and bring in a minimum threshold as it has for the steroid nandrolone, which is found in small quantities in some vitamin supplements.
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