John McEnroe and Tatum O’Neal
John McEnroe, known for his explosive temper on the tennis court, still holds the record for the best singles season win rate of the Open era, a feat achieved during a 1984 match. In the '80s, McEnroe was not only a top-ranked tennis player but also grappled with addiction issues while navigating the challenges of fame.
In contrast, actress Tatum O'Neal had already made history as the youngest person to win an Academy Award and starred in the 1980 film "Little Darlings." The paths of McEnroe and O'Neal converged in 1986 when they married and subsequently had three children together. However, their relationship faced its own set of challenges as O'Neal battled addiction, ultimately leading to John McEnroe gaining custody of their children. Their '80s union, marked by triumphs and struggles, remains a significant part of their histories.