SINGAPORE—Caroline Wozniacki says she has no plans to hire another coach again outside of her father, Piotr.

The 24-year-old Dane split with her coach Michael Mortensen last spring. Wozniacki also tried to work with Thomas Johansson in 2012 and Thomas Hogstedt, late last year, but soon parted with both coaches. Piotr Wozniacki said that he wanted to step back last year, but his daughter asked him to return as coach.

“I think it's going to be the same. I feel like I've tried enough and I'm tired of trying different things,” Wozniacki, who is in the White Group at the WTA Tour Finals, told TENNIS.com. “So I'm happy where I am. My dad is a great coach and it's been working really well. It's nice for me to have my family with me. I think that that's the most important thing.

“I realized that when my family doesn't travel with me to tournaments, I feel kind of lonely and I don't enjoy the game as much. At the same time, I'm not going to play forever, so hopefully he still wants to stick around with me for a few more years.”