Partial Source: Pwinsider.com
There has been a lot of speculation on Chris Jericho's WrestleMania opponent following his return to WWE last night at the Royal Rumble.
Word is that Jericho may feud with Dolph Ziggler up to the Elimination Chamber pay-per-view, and then turn heel. Once Jericho turns heel, he may feud with Ryback, which will include a WrestleMania match.
Keep in mind this is only a RUMOR for now and should be taken with a grain of salt. More as we get it.