Run-Up to WTA Finals Singles: Here's who has qualified

BEIJING, CHINA - OCTOBER 06:  Angelique Kerber of Germany returns a shot against Elina Svitolina of Ukraine  during the Women's singles third round match on day six of the 2016 China Open at the China National Tennis Centre on October 6, 2016 in Beijing, China.  (Photo by Lintao Zhang/Getty Images)

2. Agnieszka Radwanska

SINGAPORE - OCTOBER 19:  Agnieszka Radwanska of Poland practices in preparation for the BNP Paribas WTA Finals in the Singapore Indoor Stadium at Singapore Sports Hub on October 19, 2016 in Singapore.  (Photo by Matthew Stockman/Getty Images for WTA)

The Polish World Number 2 Radwanska qualified for the Finals by winning the Shenzhen Open, New Haven Open and Beijing Open. Her results in the Grand Slams were more or less impressive too which secured her the second berth in the WTA Finals.

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