Cena is "a little shaken up," WWE physician Dr. Michael Sampson told WWE.com.
"They were whiplash-type injuries that he sustained," said Sampson. "He feels good today, but then a couple days later, that's when you get the neck stiffness and the pain. He is cleared to compete tonight. We're going to let him go, but we're definitely going to keep an eye on him. We're going to check him right before his match one more time, just to make sure he's okay."
-- In conjunction with The Ryan Seacrest Foundation, R-Truth and Santino Marella made a special appearance today on a radio show hosted by children at The Children's Hospital of Philadelphia. The story, photos and video are available here.
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