World boxing champion Vitali Klitschko of the Ukraine, right, watches challenger Odlanier Solis of Cuba going down during the first round of the WBC heavyweight title bout at the arena in Cologne, Germany, Saturday, March 19, 2011. Solis lost in in the first round with an injured knee. Klitschko's win was declared k.o. by the referee. (AP Photo/Martin Meissner)