The pair split the four grand slam trophies between them previous year, with Nadal, at 31, finishing the season as the ATP rankings' oldest world number one. "This is going to be a very interesting year".
In Melbourne, Nadal is at his first major tournament in years without his uncle Toni, who coached him from childhood until after his US Open win last year.
That is giving Djokovic some hope. "I feel ready to start", she said. I guess right now that's what I'm doing.
Halep has since been bolstered by words from four-time Grand Slam victor, Kin Clijsters. After six, seven matches, you start feeling like a different player, that you can't miss anymore. The opponent was Rafael Nadal, a marquee name on the ATP World Tour with more Grand Slam titles than he had fingers to count them.
Off the court, the 30-year-old Serbian said he enjoyed a closer-to-normal family life off the court, including being there when his wife, Jelena, gave birth to their second child - a daughter, Tara, in September.
Experts' picks: This just in: It's going to be Roger Federer time again.
Now it's a less dramatic, more compact swing and he was happy with how it worked in an exhibition win over Thiem earlier in the week.
"There are three or four details that I have changed", Djokovic said.More news: US could return to climate deal By
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"I want to kind of ride the highs, not as high as I usually do". "They spent a lot of hours analyzing my serve".
Injuries to leading players have been a focus of attention in Australia.
Five-time finalist Andy Murray withdrew more than a week ahead of time, deciding to have surgery on a right hip problem that had kept him off the tour since Wimbledon. I'm moving towards 100 per cent.
"I know that if I get myself to desired level of performance - mental and physical - that I can actually have a good chance to go far in the tournament". I played juniors with her.
Another great recognition for Rafael Nadal and Roger Federer.
The 29-year-old has continued 2018 where he left off with a 21st career title looming at this week's ASB Classic in Auckland and he will return to the Top 10 of the ATP Rankings for the first time since August 2014 when he gears himself up for a first-round test against the hugely-talented American Frances Tiafoe. "I definitely feel comfortable on Hisense Arena". "So I'm really looking forward to trying out my new serve!"
"That's why I see things more relaxed, you know, at a later stage of my career".