Fashion, charity, controversy and Swiss farewells provide the talking points in New York.

We take a look at the main talking points ahead of the final Grand Slam of the year

NEW YORK, Aug 31 : Naomi Osaka unveiled another bold Grand Slam walk-on outfit at the U.S. Open on Monday before the two-time champion battled to a 7-6(6) 7-6(3) victory over…