Argentina's Facundo Bagnis returns a shot to Brazil's Thiago Monteiro...

Argentina's Facundo Bagnis returns a shot to Brazil's Thiago Monteiro during a men's single quarterfinals tennis match at the Pan American Games in Santiago, Chile, Friday, Oct. 27, 2023. Credit: AP/Silvia Izquierdo

LONDON — Argentine tennis player Facundo Bagnis chose to begin a voluntary provisional suspension in an anti-doping case after testing positive for a substance in the category of diuretics and masking agents, the International Tennis Integrity Agency announced Thursday.

The 35-year-old Bagnis' test came while he was competing in qualifying at the U.S. Open in August. His loss in the first round was his sixth defeat in a row in Grand Slam qualifying matches.

He reached a career-high No. 55 in the ATP rankings in 2016.

Bagnis was notified of the result this month and chose to begin a provisional suspension last week. If he ends up being banned, the provisional suspension will count as time served.

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