Williams, winner of 73 titles during her career, will make her debut against Montenegrin Danka Kovinic, 80 in the world, hoping to prolong as long as possible a participation that is expected to be full of emotional moments.
The Polish Iga Swiatek leads the WTA classification with a firm racket and with 8,605 points, compared to 4,360 for her immediate rival, the Estonian Anett Kontaveit.
The Greek Maria Sakkari, the Spanish Paula Badosa and the Tunisian Ons Jabeur complete the first five positions.
Among the top ten positions, the only variation of the week is the rise from the tenth to the ninth step of the Russian Daria Kasatkina, to the detriment of the Spanish Garbiñe Muguruza.
The entrance Serena Williams bids farewell at the US Open from 605th place was first published in diary TODAY.
