In 2004 the whole Boston Red Sox team received the Sportsman of the Year Award.
Brett Favre did of course!
Muhammad Ali won the Sports Illustrated Sportsman of the Year Award once, in 1974.
1971 Lee Trevino Golf PGA Player of the Year
1977 Steve Cauthen Horse racing Eclipse Award for Outstanding Jockey
Tom Seaver, New York Mets pitcher.
Catcher Thurman Munson, of the New York Yankees, won the American League Rookie of the Year award in 1970.
1964 Ken Venturi Golf U.S. Open Champion
1974 Muhammad Ali Boxing World heavyweight champion