World number one Aryna Sabalenka says she feels "fresh and ready to go" for the new tennis season as she looks to back up her stellar year.

The Belarusian defended her Australian Open title in January before winning the US Open in September - her third major singles title.

She also replaced Iga Swiatek at the top of the world rankings and finished as the year-end number one.

The 26-year-old will open her season at the Brisbane International, which begins on 29 December.

"There is so many things to improve," Sabalenka said.

"I'm not that good with maybe my game at the net in singles. There is a lot of things to improve in my touch game.

"Even my serve is not as good as I want it to be, so there is always [elements] to improve."