Russia kept Argentina from clinching a berth in the Davis Cup finals Saturday when Igor Kunitsyn and Dmitry Tursunov rallied from 3-1 down in the fifth set to beat David Nalbandian and Guillermo Canas 6-2, 6-1, 6-7 (9), 3-6, 8-6. Argentina had won the opening singles matches on Friday and captain Alberto Mancini had hoped to seal the tie on Saturday. More...