UFC 84

Shaquille O’Neal was ringside at UFC 84 on Saturday night at the MGM Grand Garden Arena at Las Vegas.  (Eric Jamison / Associated Press)

Wanderlei Silva celebrates his first-round TKO of Keith Jardine during the light-heavyweight bout Saturday night at the MGM Grand Garden Arena in Las Vegas.  (Eric Jamison / Associated Press)

Keith Jardine tries to regain his senses as Dr. David Watson examines him after a first-round TKO loss to Wanderlei Silva on Saturday night in a light-heavyweight bout at UFC 84 in Las Vegas.  (Eric Jamison / Associated Press)