James Augustus Hunter, nicknamed "Catfish", was an American professional baseball player in Major League Baseball (MLB). From 1965 to 1979, he was a pitcher for the Kansas City / Oakland Athletics and New York Yankees. Hunter was the first pitcher since 1915 to win 200 games by age 31. He is often referred to as baseball's first big-money free agent, and was a member of five World Series championship teams.

The Oakland Athletics are an American professional baseball team based in Oakland, California. The Athletics compete in Major League Baseball (MLB) as a member club of the American League (AL) West Division. The team currently plays its home games at the Oakland Coliseum, with plans to temporarily move to Sutter Health Park in West Sacramento, California, for the 2025–2027 seasons, prior to their permanent move to Las Vegas. The nine World Series championships, fifteen pennants, and seventeen division titles that the A's have won throughout their history is the second-highest in the American League after the New York Yankees.