Where is Undertaker

After the Royal Rumble 2011, promos showing The Undertaker entering and standing within an old house began airing. Each promo would end with the date 2-21-11 being burned into the screen. On the February 21 episode of Raw following the Elimination Chamber 2011, The Undertaker returned to Raw, but was interrupted by Triple H, who also returned moments later and confronted The Undertaker. The two of them stared at the WrestleMania XXVII marquee, which turned out to be a challenge that The Undertaker accepted. The match was then made official on WWE's official website and then turned into a No Holds Barred match. At WrestleMania XXVII, after surviving three Pedigrees and aTombstone Piledriver, Undertaker forced Triple H to tap out to Hell's Gate, extending his streak to 19–0. Undertaker was taken out on a stretcher when he collapsed. This angle was done so that Undertaker could take time off, as his shoulder had not fully healed at this point