Nicolas Jarry has been provisionally suspended for an anti-doping violation.
That sample was sent to the World Anti-Doping Agency ("WADA") accredited laboratory in Montreal, Canada for analysis, and was found to contain SARM LGD-4033 (Ligandrol) metabolite and Stanozolol metabolite.
The urine sample he provided on November 19 regarding the sidelines for the Davis Cup in Madrid ended up being discovered to include "metabolites of Ligandrol and Stanozolol", two anabolic representatives, stated the ITF.
Jarry said that his first urine test came back clean but the second one might have come back positive because he consumed "multi-vitamins made in Brazil" which could have been contaminated.
The 78th-ranked Jarry denied in an Instagram post that he knowingly ingested the banned substances.
The levels of these substances are so incredibly low that they are equivalent to trillionths of a gram, levels so low that neither substance could have provided me any performance enhancing benefit.
Jarry, who was beaten in Australian Open qualifying on Sunday, said he and his legal team will be "working strongly" to prove his innocence and will fully cooperate with the ITF.
"Mr. Jarry had (and retains) the right to ask the president of the independent tribunal summoned to hear his case why the provisional suspension should not be imposed, but has chosen not to exercise this right to date", said one ITF press release.
The 24-year-old player reached a career-high ranking of 38th in singles in July.