Adam Eaton, an outfielder known for his speed and defensive skills, began his Major League Baseball career with the Arizona Diamondbacks. Drafted in the 19th round of the 2010 MLB Draft, Eaton quickly rose through the minor league ranks, making his MLB debut with the Diamondbacks in September 2012. His time with Arizona was brief but promising, as he demonstrated his potential as a leadoff hitter with a keen eye for getting on base.

In December 2013, Eaton was traded to the Chicago White Sox as part of a three-team deal. It was with the White Sox that Eaton began to establish himself as a reliable everyday player. Over the next three seasons, he consistently posted solid batting averages and on-base percentages, while also providing strong defense in the outfield. Eaton's ability to cover ground and make challenging catches became a hallmark of his tenure in Chicago. In 2016, he led the American League in triples, showcasing his speed and aggressive base running.

Eaton's career took another turn in December 2016 when he was traded to the Washington Nationals. The Nationals saw Eaton as a crucial piece in their quest for a championship. Unfortunately, his first season in Washington was marred by injury. In April 2017, Eaton suffered a torn ACL, sidelining him for the remainder of the season. Despite this setback, he returned to the field in 2018, gradually regaining his form and contributing to the Nationals' lineup.

The pinnacle of Eaton's career came in 2019 when he played a vital role in the Nationals' World Series run. Throughout the postseason, Eaton delivered key hits and provided steady defense, helping Washington secure its first-ever World Series title. His performance in the World Series was particularly noteworthy, as he batted .320 and drove in crucial runs, solidifying his place in Nationals history.

Eaton continued to play for the Nationals in the shortened 2020 season, but his performance dipped, and he became a free agent at the end of the year. In January 2021, he returned to the Chicago White Sox on a one-year deal. However, his second stint with the White Sox was short-lived, as he was released in July 2021 after struggling at the plate. Shortly thereafter, Eaton signed with the Los Angeles Angels, where he finished the season before being released in August.

Throughout his career, Eaton was known for his hustle and tenacity on the field.