Karolina Pliskova says her main focus in 2018 will be on trying to secure a first Grand Slam title, not on trying to return to the top of the world rankings.
The 25-year-old Czech reached the summit in the ranking in July last year and admits that having done so has reduced her motivation in that area.
I have different goals, like titles in tournaments and Grand Slams and rankings for me don't matter that much anymore.Karolina Pliskova
However, she is eager to break her Grand Slam duck, having reached the final of the 2016 US Open and the semi-finals of Wimbledon last summer.
She told Tennis World: "Since I was there (at number one) I don't fight for this anymore.
"I have different goals, like titles in tournaments and Grand Slams and rankings for me don't matter that much anymore."
Pliskova can be backed at 8.00 to win the upcoming Australian Open, with Caroline Wozniacki available at 11.00 and Elina Svitolina 8.00.
And Svitolina is a player who has her sights very much on challenging at the very pinnacle of the women's game, having opened her campaign with a 6-2, 6-4 win over Carla Suarez Navarro at the Brisbane International.
The Ukrainian commented afterwards: "This match was a good example that I can play a good level of tennis, a high level of tennis. I will try to continue to work and just be focused on these kinds of things.
"That's what's important for me and then the Grand Slam and number one is all going to come if I have my game, if I'm healthy, if I'm playing my best."
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