Caroline Wozniacki adjusted her offseason training, having repeatedly spent time on the sidelines in 2016 with injuries.
Wozniacki was affected by wrist problems and had an ankle injury during the clay-court season, falling to No. 74 in the rankings. But she surged back in the second half of the season by reaching the semifinals of the U.S Open and then winning two titles.
The 26-year-old, known as one of the fittest players on tour, is now doing less physical training to avoid wear and tear.
"I changed up my practice quite a bit," she told reporters in Sydney. "I did a lot of other things, probably spent more time on court than I have in a long time, and less time in the gym, actually ... That was a big change for me, because I have worked so hard on my fitness and worked so hard on trying to prevent injuries."
She began the season by reaching the quarterfinals in Auckland. In Sydney, she’s into the quarterfinals after beating Monica Puig and Yulia Putintseva.
Being fresher could help her stay at a high level for longer, Wozniacki added.
"Sometimes less is more," the world No. 20 said.