Briscoe threw out the challenge.
A video message from Mark Briscoe was pushed out through AEW's socials. Briscoe set his sights on AEW Continental Champion Kazuchika Okada.
Briscoe spoke about his history with Kenny Omega and how he was not happy with Okada taking Omega out at Summer Blockbuster.
He then called the Continental Champion out for Grand Slam Mexico on June 18th and it was made official.
Below is the updated card for the Arena México show:
* MJF vs. Místico
* CMLL World Women's Championship: Zeuxis (c) vs. Mercedes Moné
* Jon Moxley, Claudio Castagnoli, Wheeler Yuta, Matt Jackson & Nicholas Jackson vs. Will Ospreay, Swerve Strickland, Samoa Joe, Katsuyori & Powerhouse Hobbs
* Bandido, Templario, Atlantis Jr., Brody King, Daniel Garcia & Adam Cole vs. Hechicero, Kyle Fletcher, Konosuke Takeshita, Josh Alexander, Dax Harwood & Cash Wheeler
* Mark Briscoe vs. Kazuchika Okada
