According to a fan in attendance at last night's SmackDown tapings in Columbus, Ohio, Undertaker appeared to aggravate a knee injury during the dark match main event.

He was attacked by Curt Hawkins, Zach Ryder and Bam Neely during his match with Big Show, but eventually cleared the ring. He posed for the crowd and walked for a few minutes before momentarily sitting down on the ring steps before heading to the back.

"Honestly, he looked pretty bad off," the fan in attendance said. "He was sitting there like he was so exhausted he couldn't make it up the ramp. He finally walked up the ramp, but he was limping pretty badly. It wasn't a little limp, it was very noticeable."

Of course, he could be selling the injury, but he was playing to the crowd before sitting down.

As reported earlier, he recently had his knee checked by doctors and WWE has been limiting his involvement in the ring since his match with Edge at SummerSlam. Taker has been appearing on television in non-wrestling segments and has been working tag matches for the most part so that his partner could handle most of the work in the ring. Undertaker has been telling friends that his knee is still tender and that there is some soreness.