Serena Williams is aiming to win a record-equalling 24th Grand Slam singles title when she faces Naomi Osaka in the US Open final on Saturday, just one year after giving birth.
The American, 36, hopes to equal Australian Margaret Court's record.
Williams lost to Angelique Kerber in the Wimbledon final in July and could win her first Grand Slam title since having daughter Olympia.
Osaka, 20, is the first Japanese woman to reach a Grand Slam final.
The final begins at 21:00 BST on Arthur Ashe Stadium with the mixed doubles final, featuring Britain's Jamie Murray, starting at 17:00.