Hopman Cup: Poland beat USA in Perth final
Agnieszka Radwanska and Jerzy Janowicz secured victory for Poland against the United States in the Hopman Cup final.
The pair sealed the tie in Perth by beating John Isner and Serena Williams 7-5 6-3 in the mixed doubles after sharing the earlier singles rubbers.
World number five Radwanska earned a shock 6-4 6-7 6-1 win over world number one Williams to give Poland the lead.
Isner, ranked 18th in the world, had then squared the final after beating world number 43 Janowicz 7-6 6-4.