Franz Koll has been appointed by Silhouette as the new managing director of its Adidas Sports Eyewear division in Linz, replacing Kurt Sengstschmid who has left the company. Koll, who is 35 years old, was previously brand manager for F2 and Arrows/North Sails in the Swiss/Austrian Boards & More group. He was also international sales manager at Camaro in Austria. Meanwhile, Adidas, which recently reported excellent first-half results (more in Sporting Goods Intelligence Europe), has put an end to its sponsorship deal with Jan Ullrich, the German cycling champion, because he had been found guilty of doping.