Rocky IV co-starred the actor who was involved in what other sport besides boxing?
Rocky IV:  The film co-stars Dolph Lundgren, Burt Young, Talia Shire, Carl Weathers, Tony Burton, Brigitte Nielsen, and Michael Pataki. Tony Burton: Anthony "Tony" Burton (March 23, 1937 – February 25, 2016) was an American actor, boxer, and football player.
football