No coach, no problem as Pliskova targets WTA Finals

Sep 6, 2017; New York, NY, USA; Karolina Pliskova of Czech Republic returns a shot to CoCo Vandeweghe of the United States on day ten of the U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Jerry Lai-USA TODAY Sports

(Reuters) - Former world number one Karolina Pliskova is confident that splitting with coach David Kotyza will not be a hindrance as she attempts to go it alone over the home stretch of the season, leading up to the WTA Finals in Singapore next month.

Pliskova, who began working with Kotyza last December, won three WTA singles titles this season and reached the French Open semi-finals and U.S. Open quarter-finals, but parted company with the 50-year-old last week after losing the number one ranking.