Larson, 25, would replace actress Emma Stone, who had to pass on the role due to a scheduling conflict. Actor Steve Carell is currently set to play Bobby Riggs in the film, reported Variety.
The story of King and Riggs became a zeitgeist event back in 1973, when the 29-year-old No 2 ranked female star rose to the challenge and beat the 55-year-old retired former Wimbledon champion Riggs.
"Little Miss Sunshine" filmmakers Jonathan Dayton and Valerie Faris will direct from a script written by Simon Beaufoy. The film is produced by Danny Boyle and Christian Colson.
Larson, who last year broke out with indie hit "Short Term 12", will be next seen in the Canadian-Irish drama "Room".
