Complex sentence: During most of 2008, he feuded with Wally Darkmon and on September 12,2008 he lost the AMW Light Heavyweight Championship to Darkmon in a casket match.
Split into simpler sentences: During most of 2008 he feuded with Wally Darkmon. On September 12,2008 Daivari lost his AMW Light Heavyweight Championship to Wally Darkmon in a Casket Match.