Markus Lynn "Mookie" Betts is an American professional baseball outfielder, shortstop, and second baseman for the Los Angeles Dodgers of Major League Baseball (MLB) and the United States national team. He previously played for the Boston Red Sox. In 2018, while with the Red Sox, he became the first player in MLB history to win the Most Valuable Player, Silver Slugger, Gold Glove, batting title, and World Series all in the same season.

The United States national baseball team, also known as Team USA represents the United States in international-level baseball competitions. The team is currently ranked 2nd in the world by the World Baseball Softball Confederation. The United States has won many international tournaments, many of which are now discontinued. Most notably the team won the Olympic baseball tournament in 2000, and the World Baseball Classic (WBC) in 2017.