Lucas Arnold Ker

Lucas Arnold Ker is a professional tennis player from Argentina. Arnold Ker started playing tennis in the Olivos Tenis Club of Buenos Aires, under coach Malcolm Campbell. He is right-handed and turned professional in 1994. He has played several times for the Argentine Davis Cup team, where he made his debut in 1997 against Venezuela. He was Roger Federer\'s opponent in the Swissman\'s first professional match in 1998 and is one of three active players to have a positive head-to-head record against Federer. He was diagnose with cancer in 2006 and successfully underwent chemotherapy