Conversation so far:
What started the feud between Erich and the Fabulous Freebirds?
On June 17, 1983, Kerry Von Erich teamed with Bruiser Brody to defeat the Fabulous Freebirds for the NWA American Tag Team Championship.
When did Kerry Von Erich receive the american heavyweight championship title?
On December 28, 1980, his first NWA American Heavyweight Championship reign came after he defeated Gino Hernandez for the vacant title

Question: Who did he compete against?
Self-contained rewrite: Who did Kerry Von Erich compete against for the American Heavyweight Championship?