Trivia

Björn Borg's real-life son, Leo Borg, plays young Björn.

Björn Borg is thanked in the end credits, but not John McEnroe.

Finnish tennis ex-pros Jarkko Nieminen and Veli Paloheimo trained the actors.

Many of John McEnroe's complaints and rages on court were accurate. McEnroe's kids like to have fun by showing clips where he goes crazy like cursing at the umpire or destroying racquets.

Björn Borg and John McEnroe met in a total of 14 matches between 1978-1981.