Not much room for error: Serena Williams, in search of her 23rd Grand Slam singles win, and 2016 champion Novak Djokovic face tougher-than expected first-round matches at the Australian Open on Tuesday

For Nick Kyrgios, the talented yet combustible bad boy of tennis, it was a rather routine 6-1, 6-2, 6-2 win over Portugal's Gastao Elias in the first round of the Australian Open on Monday

Destanee Aiava's Australian Open lasted just 92 minutes Monday while making history as the first person born in the 2000s to play in the main draw at a Grand Slam tournament

Rafael Nadal isn't planning to give up tennis anytime soon

It's new and exciting for Andy Murray and Angelique Kerber, entering a Grand Slam tournament with the No. 1 in front of their names

While Roger Federer spent his time at Melbourne Park on Saturday talking about his comeback at a news conference, dozens of lower-ranked players were still at work trying to earn a spot in the main draw of the Australian Open

At last year's Australian Open, the players were caught totally by surprise when a report was published on the eve of the tournament alleging widespread match-fixing in the game

Andy Murray has become a father, gained the No. 1 ranking and become a knight since he left Melbourne Park 50 weeks ago after losing a fifth Australian Open final

Six-time Australian Open champion Novak Djokovic drew a difficult first round against Fernando Verdasco, and Roger Federer ended up in same quarter as top-ranked Andy Murray, No. 5 Kei Nishikori and No. 10 Tomas Berdych