Serena Williams will play close to her more established sister Venus in the US Open copies. The Williams sisters have brought home a consolidated 14 copies of championships and three Olympic gold decorations.
Serena Williams, 40, stunned the tennis world when she declared she would resign after the US Open, which begins in New York on Monday.
As well as playing singles, she was given a special case to play her 42-year-old sister in copies. The pair have not played copies together since the 2018 French Open when they lost in the third round.
Their most memorable Grand Slam title together came at the French Open in 1999, and they won their fourteenth at Wimbledon in 2016. Serena Williams reported last month that she was "leaving" the game and the time had come to tap out.
Now ranked 608 in the world, the 23-time Grand Slam singles champion will play Montenegro's Danka Kovinic in the first round, with the match leading the night session at the Arthur Ashe Stadium on Monday (7 pm local time, 00:00 BST on Tuesday).
Venus Williams, who has won seven major singles titles and is ranked 1,445 in the world, also plays singles. After receiving a wildcard, she will face Belgium's Alison van Uytvanck in her first match on Tuesday.