'Battle Of The Sexes' Gives Audiences A Window Into How Tennis Used To Be Played

The new film "Battle of the Sexes" is about the famed 1973 tennis match between Bobby Riggs and Billie Jean King. Since then, the sport of tennis has changed considerably; for example, wooden rackets are a thing of the past.

Kaitlyn Christian is a tennis pro who appears in the film, and also was the tennis double for Emma Stone, who plays Billie Jean King in the film. Christian talks with Here & Now's Robin Young about what it was like to learn how to play '70s-style tennis.