WWE's Rusev & Lana Say Rusev's Gonna Retire The Undertaker, Crush His Old Ass!

[[tmz:video id="0_amesxql5"]] 2:00 PM PT -- WWE has announced that Rusev will be replaced by Chris Jericho in the Casket Match vs. The Undertaker ... after Lana voiced a complaint. "I’ve already spoke with WWE officials to change…