Althea Gibson made sporting history in 1957 - the first black tennis player to win a Wimbledon title. She also won the US Open and the French Open. Raised on the streets of Harlem, her story is remarkable. And yet she is relatively unknown. Devi Sridhar, Professor of Global Public Health at Edinburgh University, champions Althea Gibson's life with the help of the writer Sally H. Jacobs, who is writing a new biography of the tennis star.

The presenter is Matthew Parris and the producer for BBC Audio in Bristol is Chris Ledgard