William Francis Lee III, nicknamed "Spaceman", is an American former professional baseball left-handed pitcher who played in Major League Baseball (MLB) for the Boston Red Sox (1969–1978) and Montreal Expos (1979–1982). On November 7, 2008, Lee was inducted into the Red Sox Hall of Fame as the team's record-holder for most games pitched by a left-hander (321) and the third highest win total by a Red Sox southpaw (94). On August 23, 2012, he signed a contract to play with the San Rafael Pacifics of the independent North American League, at age 65.

The San Rafael Pacifics are an American professional baseball team based in San Rafael, California, United States. They compete in the Pacific Division of the Pecos League, an independent baseball league which is not affiliated with Major or Minor League Baseball. They were previous members of the North American League and charter members of the Pacific Association. The Pacifics have played their homes games at Albert Park since 2012. The Pacifics were the winningest franchise of the Pacific Association, capturing four championships in seven seasons.