According to Mike Johnson of PWInsider.com, there is a lot of concern about The Undertaker’s health and his long-term future in wrestling following his performance in Puerto Rico a few weeks back. When Undertaker had his hip surgery after Wrestlemania, people backstage saw it as a minor issue that was being taken care of. As it turns out, it was actually more serious than expected (some sources claim a hip replacement). There were even private concerns as to whether he was going to get back in the ring at all.
One of the reasons Undertaker's Breaking Point PPV bout was booked to only go nine minutes was due to his pain as of late and the fact that he has been moving noticeably slower. There is some talk going around right now that Wrestlemania 26 could be his final major PPV event.