The Spaniard is back to try and make a run at the No.1 ranking.
Tennis Channel touts it will televise more than 50 live hours of coverage of the WTA Finals in Cancun.
The Tsitsidream came true on Sunday in Antwerp.
Ben Shelton, Sunday's Tokyo champion, rounds out the quartet at No.15.
The Dane hopes to work his way out of a tailspin and into the Turin field.
Meanwhile, Daniil Medvedev will bid for a title defense in Austria.
The eight-team field is set for the WTA Finals, which commence on October 30 in Cancun, Mexico
