Serena thumps Radwanska to set up final date with Jankovic

Serena Williams of the U.S. runs to return a shot during her women's singles semi-final match against Agnieszka Radwanska of Poland at the China Open tennis tournament in Beijing October 5, 2013. REUTERS/Kim Kyung-Hoon

(Reuters) - World number one Serena Williams and Serbian eighth seed Jelena Jankovic set up a final showdown in the China Open after their contrasting victories in the semi-finals on Saturday.

The top-seeded American, who has now won 72 matches in 2013 and a prize purse of more than $9 million, hit 31 winners to thrash Poland's Agnieszka Radwanska 6-2 6-2.