Mariano Rubén Puerta (Spanish pronunciation: [ma'?jano ru'ßem 'pwe?ta]; born 19 September 1978) is an Argentine former professional tennis player.
He reached a career-high ATP world No.
9 singles ranking in August 2005.
His career highlight of reaching the final of the French Open in 2005 was marred by testing positive for the banned substance etilefrine in a drugs test directly after the French Open final, for which he received an eight-year doping ban.