Cologne/Germany – Vitali Klitschko (41-2, 38 KOs), and Odlanier Solis (17-0, 12 KOs), participated today in a public workout at Mercedes Benz Center Cologne in front of 1,000 boxing fans. WBC World Heavyweight Champion Klitschko and WBC mandatory challenger Solis will face off next Saturday at LANXESS arena in Cologne, Germany.