Next month, Kate Middleton will join tennis legend Roger Federer on the court

Middleton is teaming up with a favorite tennis star to support disadvantaged children. As part of an event to raise awareness and funds for both Actions for Children and the LTA Foundation, the Duchess of Cambridge will play tennis next month with 20-time Grand Slam winner Roger Federer.

The special day will give East London kids ages 8-15 the chance to play with Federer, 41, who is a passionate champion of grassroots tennis. Young people from all backgrounds are encouraged to take part in the sport and benefit from its numerous mental and physical health advantages.

A charity open practice day will follow on September 22 for the Laver Cup, an international indoor hard court men's team tournament. Ticket sales will benefit Action for Children and the LTA Foundation, with proceeds going towards Federer and other stars from Team Europe and Team World.

As a lifelong tennis enthusiast, Kate has a court at her Norfolk home where she plays against her 40-year-old husband, Prince William. Their children are also regularly taken to a club in London for lessons. She also regularly attends the Wimbledon tennis championships in London every summer, a contest Federer has won eight times. Earlier this year, Kate welcomed back U.S Open champion Emma Raducanu, 19, to the U.K.

Kate's most important charity is Action for Children, which helps vulnerable children, young people, and their families in the U.K. The funds raised by the tennis events will be used to provide emotional and practical support to children, Kensington Palace said in a release. It will also provide disadvantaged kids with fun activities and outings, according to the release.

The money will go towards the LTA Tennis Foundation's SERVES initiative, which funds 50 new coaching programs for children in some of the U.K.'s poorest communities. As Kate and her family are currently on summer vacation, they are expected to visit Balmoral Castle in Scotland to spend time with Queen Elizabeth before Prince George, Princess Charlotte, and Prince Louis return to school in September.