Karolina Pliskova has hired Dani Vallverdu as her coach ahead of the new season.
The Czech made the surprise announcement on social media as she enters negotiations with an unnamed individual.
Karolina Pliskova raised her game when it mattered to claim victory over Halep and earn a semi-final clash with Barty at the 2019 WTA Finals.
The world No.2 finds herself in a different situation compared to that of 12 months ago.
Elina Svitolina survived two fightbacks from Venus Williams as she beat the American 6-4 6-4 to advance to the third round of US Open 2019.
Johanna Konta reached the second round with a three set win over Daria Kasatkina as Karolina Pliskova also advanced at the US Open.
Serena Williams versus Maria Sharapova is the headline clash in an intriguing 2019 US Open Women's Singles Draw.
It was a testing day at the office for two of the top 10 women’s seeds at The All England Club.
Karolina Pliskova maintained her superb form with a comfortable straight sets victory over Kerber in the Nature Valley International final.
Karolina Pliskova thrashed Kiki Bertens in Eastbourne to gain revenge for the Dutchwoman's defeat of her at Wimbledon last year.
Ashleigh Barty, Serena Williams and Angelique Kerber face a tough time at Wimbledon after they were all drawn in the same quarter.
Kiki Bertens will play Karolina Pliskova in the semi-finals at Eastbourne after she beat Aryna Sabalenka for the fourth time in a row.
Karolina Pliskova talked about her form on grass, her confidence on court and her improved fortunes since she hired Conchita Martinez.
Caroline Wozniacki started her bid for a third title in Eastbourne with a win, while Pliskova, Ostapenko and Vondrousova also secured victories.
Kristyna Pliskova stunned sister Karolina by beating her in an intense three-set encounter at the Nature Valley Classic.
French Open champion Ashleigh Barty and World No.3 Karolina Pliskova are the favourites for the title after Kvitova was forced to withdraw.
Karolina Pliskova made an impressive start to French Open 2019 with a comfortable straight-sets win over Madison Brengle.
Ubitennis' guide to the five women who could exit the French Open as world No.1.
The 27-year-old has triumphed in the last major women’s tournament before the start of the French Open.
Johanna Konta advanced to her first semi-final in Rome by beating Vondrousova in three sets, while Pliskova beat Azarenka.
