Academy Award-nominated actress Emma Stone reportedly had a problem during filming of the upcoming Fox Searchlight movie “Battle of the Sexes,” in which she plays tennis legend Billie Jean King. The problem, according to a report on The New York Post’s Page Six, was that Stone’s tennis skills were “subpar.”

Stone reportedly received coaching from King, but still couldn’t get the hang of it — meaning that a body double got plenty of work during filming.

The report quotes an inside source saying: “Billie Jean herself tried to teach Emma to play tennis, but she was useless, so they got a body double. … Steve Carell, who plays [Bobby] Riggs, is a great tennis player and did all of his action scenes.”

Another source had a slightly different story, saying: “There are always doubles in films that require a sport, skill or stunt. Emma did play tennis in the film. And so did her double. Steve also had a double.”

The film revisits the high-profile tennis match between Riggs and King in 1973. A spokeswoman for King confirmed that the tennis pioneer took a shot at helping Stone raise her game.

“Billie Jean visited the set and had a fantastic time,” the spokeswoman said. “She did give Emma some pointers on her serve and backhand. They just had a blast. Billie Jean had the most fun.”