John Wathan's journey in Major League Baseball is marked by his time with the Kansas City Royals, both as a player and later as a manager. Born on October 4, 1949, in Cedar Rapids, Iowa, Wathan attended the University of San Diego, where he honed his skills as a catcher. His professional career began when he was drafted by the Kansas City Royals in the first round of the 1971 MLB Draft.

Wathan made his major league debut with the Royals in 1976. As a catcher, he was known for his defensive skills and ability to handle pitchers effectively. Over the years, he became a reliable presence behind the plate for Kansas City. His versatility also allowed him to play at first base and in the outfield when needed, showcasing his adaptability on the field.

One of the highlights of Wathan's playing career came in 1980 when the Royals reached the World Series. Although the team fell to the Philadelphia Phillies, Wathan's performance during the season and postseason was commendable. He was part of a strong Royals lineup that included players like George Brett and Willie Wilson.

In 1982, Wathan set a major league record for catchers by stealing 36 bases in a single season, a testament to his speed and base-running intelligence. This record stood for several years and highlighted an unusual skill for a player in his position. Throughout his playing career, Wathan was known for his leadership qualities and understanding of the game, traits that would later serve him well in his managerial career.

After retiring as a player in 1985, Wathan transitioned into coaching and management. He took over as the manager of the Kansas City Royals in 1987, following the departure of Dick Howser. Under his leadership, the Royals had a winning season in 1989, finishing second in the American League West. Wathan's managerial style was characterized by his emphasis on fundamentals and player development.

Wathan's tenure as manager ended in 1991, but his involvement in baseball continued. He later served in various coaching and scouting roles within the Royals organization and other teams. His deep understanding of the game and experience as both a player and manager made him a valuable asset in these roles.