Though he wasn't announced in advance, Chris Jericho made an appearance at All In on Saturday night.
His appearance came after Kenny Omega defeated Pentagon Jr. The lights went out after the match, and Jericho replaced Pentagon while wearing Pentagon's full costume. Jericho laid Omega out with the Codebreaker and told Omega he'd see him on the Jericho cruise. Jericho pushed the announce table on his way out, knocking over Don Callis.
Jericho & The Young Bucks will be facing Omega, Cody Rhodes & Marty Scurll in a six-man tag on Jericho's Rock 'N' Wrestling Rager at Sea this October.
With Jericho having been absent on New Japan Pro Wrestling's shows in the United States, it's notable that he was part of a non-WWE event in the U.S.
Jericho is the current IWGP Intercontinental Champion. He hasn't appeared for NJPW since defeating Tetsuya Naito for the title at Dominion in June.