You just have to admire the physical and artistic work that Emma Stone had to put in in “Battle of the Sexes” (2017) to play an in-her-prime Billie Jean King. (Caught the movie last night, after The Wifey put it on a spin.)
Granting that doubles were used in shooting the highlight tennis match that the movie is all about, one can’t just wing it when it comes to showing those realistic tennis moves — you really have to train exhaustively to be a competitive tennis player (or at least, move like one) in order to play a competitive tennis player on-screen, a multiple champion and a Hall of Famer at that.
Respect! You have it from me, Emma.