The Undertaker vs. John Cena still on for Wrestlemania?

Both PWInsider and Dave Meltzer are reporting that Rey Mysterio was NOT backstage at SDL last night. The plan is still for Undertaker to face Cena at WM 34.

Justin Barrasso of Sports Illustrated is STILL standing by his claim that the new plan is for Cena to face Rey Mysterio at WM 34.