Alberto Del Rio is confident heading into Saturday's match against Tito Ortiz despite it being his first MMA match since 2010.
"[I'm] ready to end his career because he's going to have to retire after this fight," he said on Ariel Helwani's MMA Show Monday.
Ortiz already announced his retirement last November but re-emerged after signing a multi-fight deal with Combate Americas.
Del Rio had a 9-5 record during his professional MMA career but is better known for his spell in professional wrestling, including his time as a WWE champion.