F4Wonline.com is reporting that The Undertaker is still not certain on whether he will appear at Wrestlemania 29 or not. There have been worries for a while now over the Deadman's physical condition, but the plan at the moment is still to have him wrestle CM Punk. It is also reported that there are currently no back-up plans for Punk should The Undertaker choose to opt out. The WWE likely have some time, at least until just after the Elimination Chamber PPV, before The Undertaker would need to make decision.