Tennis star Rafael Nadal believes Jannik Sinner's doping was unintentional

Rafael Nadal told a Spanish television show that he doesn't think Jannik Sinner intended to use a banned substance and that the current No 1-ranked man didn't receive preferential treatment when he was cleared of doping after testing positive twice in March for trace amounts of an anabolic steroid.

"I trust that he wasn't punished because those who judged this case determined quite clearly that there was nothing to punish. ... I don't believe the sentence has anything to do with him being No 1 in the world," 22-time major champion Nadal said in an interview with "El Hormiguero" on Monday.

Sinner played Tommy Paul in the fourth round of the US Open on Monday night.

The International Tennis Integrity Agency said on August 20 that it was determined the banned performance-enhancer entered Sinner's system unintentionally through a massage from his physiotherapist, and that is why the player was not suspended.

Asked about the matter in New York before the US Open began, Novak Djokovic sa