Horacio Zeballos and Eduardo Schwank beat Russia's Nikolay Davydenko and Igor Kunitsyn 7-6 (7), 6-4, 6-7 (3), 6-1 on Saurday to give Argentina a 2-1 lead in their Davis Cup quarterfinal series. In Friday's opening singles, David Nalbandian gave the visitors the lead when he beat Davydenko in the first match, but Mikhail Youzhny later downed Leonardo Mayer to even the best-of-five series on... More...