Williams had lost the final 6-2, 6-4 to Japan's Naomi Osaka but the game made the headlines for her allegation that Ramos treated her differently than he would a male player.
For the first time in the United States Open, the trophy ceremony was drowned out by whistles and boos in support of the loser and against the champion.
Williams was cited by official Carlos Ramos for three code violations during her 6-2, 6-4 loss to Naomi Osaka in US Open finals.
Osaka grew up rooting for Serena Williams, even did a report on her way back in third grade. Her dream was to play Serena at the U.S. Open.
On Saturday, Williams will face No. 20 seed Osaka, a 20-year-old who is the first Japanese woman to reach a Grand Slam final.
Both players won, Osaka decisively and Nishikori narrowly to give Japan a men's and women's semifinalist at the same Grand Slam tournament for the first time.
The 14th-seeded Keys reached her third semifinal in the past five majors by using her big-strike game built on serves and forehands to overpower no. 30 Carla Suarez Navarro.
Naomi Osaka raced to a 3-0 lead in the first set and then 4-0 in the second, never giving the shaky Tsurenko a chance to get into her first major quarter-final.
Williams has been eliminated in the first round only four other times, most recently at the 2012 French Open.
The crowd of 18,347 at the Indian Wells Tennis Garden on Sunday seemed to sense Osaka's nervousness, something she worked hard to hide during a 6-3, 6-2 victory over Daria Kasatkina of Russia in the BNP Paribas Open final.
Top News
Latest News
