The William sisters are two-time champions at the U.S Open and will pair for the first time since 2018 Roland Garros.
Due to reciprocal wild card deals with Tennis Australia and the French Tennis Federation, Venus and Sofia will be joined by fellow Americans CoCo Vandeweghe, Elizabeth Mandlik, Peyton Stearns, Eleana Yu, Australia's Jaimee Fourlis, and France's Harmony Tan.
while Venus pulled out due to an injury, Kenin announced her withdrawal, as the 22-year-old American has tested positive for Covid-19
Serena, No. 1 seed, defeated Venus 3-6, 6-3, 6-4 in a thrilling match that lasted for two hours and 19 minutes on Thursday played at the Centre Court.
The American veteran said she still hoped to play at the Adelaide International later this month ahead of the Australian Open, the first Grand Slam of the year.
The former world no. 1 dominated from the very beginning, punching a barrage of winners to storm to 4-0 in the opening set in just 19 minutes.
On Monday, the organisers announced that both players will join the main draw fielded for the tournament that will be held from August 10-18.
World's 313th ranked American player Cori defeated her inspiration Venus 6-4, 6-4 who is 24 years elder to her and entered the next round of Wimbledon.
Gauff, ranked at 313 and popularly known as 'Coco', is the youngest player ever to have qualified for Wimbledon. When she was born in 2004, five-time Wimbledon champion Venus had already won four Slams.