Davis Cup: Leonardo Mayer heroics knock out defending champion GB

     Argentina's tennis players celebrate Mayer's decisive victory in the Davis Cup semifinal against Britain.

    Story highlights

    • Argentina reaches Davis Cup final
    • Beats holder Great Britain 3-2
    • Leonardo Mayer wins deciding rubber
    • Will play Croatia for the title

    (CNN)A victory forged by Juan Martin del Potro's heroics against Andy Murray in the first rubber was ultimately sealed by Leonardo Mayer as Argentina knocked out holder Great Britain to reach the Davis Cup final Sunday.