Reaction: Outrage around violations against Serena; praise for Osaka

NEW YORK -- What was supposed to be a scintillating women's final at the US Open devolved into a match marred with controversy.

Serena Williams, in a straight-sets loss to Naomi Osaka in the US Open final, was handed code violations: first a warning for coaching, then a point penalty for smashing her racket and finally a game penalty for verbal abuse. Was it fair?

Tennis players, former and present, experts and even Williams' coach, Patrick Mouratoglou, weighed in on the chair umpire's decisions:

Japan's prime minister, Shinzō Abe: