By Ruslan Chikov
Golzka reports that former WBA world heavyweight champion Nikolai Valuev had successful surgery on his left shoulder at a top Germany facility. Valuev, 37, has been inactive since last November's decision loss to David Haye. He wants to fight again in 2011 and is very interested in resuming negotiations for a possible fight with WBC champion Vitali Klitschko. Klitschko defends his title against ex-champion Shannon Briggs on October 16 in Hamburg, Germany. Valuev will return to his home in Russia next week.
