Belinda Bencic "really wanted to work with" new coach Dmitry Tursunov

Players usually bring on coaches to help them play better. Belinda Bencic has brought on hers to help her when she plays worse.

The 25-year-old from Switzerland won her opener Monday evening over Leylah Fernandez at the WTA 1000 in Guadalajara, her first event with new coach Dmitry Tursunov.

The winner of the Tokyo Olympics singles gold medal has compiled a solid season, capturing the WTA 500 in Charleston, and says she's working on reducing her perfectionism, which can lead to her getting frustrated on the court.

""It's definitely challenging for me because it's different and it's new and it's something to improve," Bencic told the WTA website. "It's a process. I'm not there yet, but it's definitely something that I'm working on."

It's something she says Tursunov, known almost as much for his jokes and personality as his tennis, can help her achieve. The former ATP player has previously worked with Belarus's Aryna Sabalenka, helping her to the cusp of the Top 10; Anett Kontaveit, helping her to reach No. 2; and most recently Emma Raducanu, with their split announced a week ago.

"I strongly believe that he's a very good coach and he can improve me, my game and the mental part. I'm super happy that he decided to work with me. I want to make it great and want to improve exactly this," Bencic said. "I really wanted to work with him.

"I saw the partnerships he had with other players and he had great success."

Bencic had previously been working with Sebastian Sachs, but had not employed a coach since the US Open. She was No. 12 in the Race to the WTA Finals prior to the start of this week.