In March, Serena returned to the court after the birth of her daughter, and this year was also marked by one of the largest scandals in her career, when Williams was fined 17 thousand dollars for the behavior in the final of the US Open.
The last time the basis of the Open championship of Australia has not played none of the Ukrainian tennis players in 2008. Serena Williams (37-yr-old) had won the game for the 17 time when she was eight weeks pregnant in 2017.
The Australian Open could include a deciding-set tie-breaker into the fifth set of the main rounds of the tournament, as soon as the season of 2019.
The five-times runner up Andy Murray, who missed three of the four majors previous year because of a hip injury will be also be a major contender of the title.
The 31-year-old Scot has entered the tournament with his protected ranking of number two after sliding down to 259th in the world in the wake of surgery on his injured joint.
Roger Federer is the two-time men's singles champion, who will defend his title from 2017 and 2018.
The only way he can gain some seeding protection for the 2019 Open - which starts on January 14 - is by defending his Brisbane International crown and hoping for some late withdrawals.
Caroline Wozniacki will focus on her maiden grand slam title defense at Melbourne Park.
"It's always special to see our defending champions - Caroline had her first Grand Slam win here past year so will be keen to start 2019 on a high", said Tiley.
Andy Murray will be included in the men's draw alongside Roger Federer, Rafael Nadal and Novak Djokovic.
"I've been in touch with Rafa and he's back to full fitness after cutting his season short after Paris and can't wait to arrive in Australia".