Naomi Osaka

US Open: Naomi Osaka books semifinal showdown against American hope Jennifer Brady

Osaka, the former No 1-ranked played who won the U.S. Open two years ago, played far cleaner tennis than her opponent in a 6-3, 6-4 win over 93rd-ranked Shelby Rogers.

Rogers finished with 27 unforced errors, Osaka with eight.

Earlier, Brady, the 28th seed, defeat Yulia Putintseva of Kazakhstan 6-3, 6-2.

Brady has never been this far at a major tournament but has split her two previous matches against Osaka, winning in 2014 before the Japanese star squared the ledger four years later.

     

Osaka targets more major glory

Osaka triumphed 6-2 6-4 on Saturday in a final that was overshadowed by a dispute between opponent Serena Williams and umpire Carlos Ramos.

Williams was issued a code violation for what the official deemed to be coaching from Patrick Mouratoglou, irritating the 23-time major champion who insisted she was not a cheat.

A point penalty for racquet abuse led to her branding Ramos a "liar" and a "thief" and she was then docked a game, after which the American called for the match referee and alleged she was being treated differently to male players.