Serbia win Davis Cup final beating the Belgrade Arena . Czech retain the trophy they won Saturday . Radek Stepanek wins the deciding singles . Novak Djokovic had extended winning run to 6 to draw Serbia level .
Czech Republic win Davis Cup final beating Serbia 3-2 . Czechs retain the trophy they won last year . Radek Stepanek wins the deciding singles . Novak Djokovic had extended winning run to 24 to draw Serbia level .