Dean Paul Martin (son of Dean Martin) only agreed to do the film if the schedule didn't interrupt his playing at major tennis tournaments.
Ali MacGraw was cast in this movie based on a desire by Paramount Pictures to re-create the box-office success of Love Story (1970), in which MacGraw had co-starred with Ryan O'Neal.
The movie featured several cameo appearances by real-life professional tennis players.
Real-life tennis star Pancho González had a major role in this film playing the tennis coach. González also choreographed the tennis match sequences.
John McEnroe: The tennis pro as himself. This was McEnroe's first film and television credit outside of sports broadcasts.