Day three at the Australian Open

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020. Tommy Paul of the U.S. celebrates after winning the match against Bulgaria's Grigor Dimitrov. REUTERS/Hannah Mckay

Australian Open contenders Novak Djokovic and Roger Federer recorded impressive wins to reach the third round at Melbourne Park on Tuesday.

Defending champion Djokovic made quick work of Japan's Tatsuma Ito with a comfortable 6-1 6-4 6-2 victory, while 20-times Grand Slam winner Federer beat Filip Krajinovic of Serbia 6-1 6-4 6-1.

Federer came into the year's first Grand Slam without playing any warm-up events but has dropped only 13 games in two matches to reach the third round for the 21st consecutive year.

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020. Bulgaria's Grigor Dimitrov leaves the court after loosing the match against Tommy Paul of the U.S. REUTERS/Hannah Mckay

In the women's draw, Serena Williams, who is bidding for a record-equalling 24th Grand Slam singles title, eased past Slovenian Tamara Zidansek 6-2 6-3.

American teenage sensation Coco Gauff rallied from a set down to beat Sorana Cirstea 4-6 6-3 7-5 in a thrilling encounter.

The 15-year-old Gauff, who beat seven-time Grand Slam champion Venus Williams in the opening round, will face defending champion Naomi Osaka in the last 32.

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Serbia’s Novak Djokovic celebrates winning the match against Japan’s Tatsuma Ito. REUTERS/Issei Kato

Highlights of the third day at the Australian Open, the first Grand Slam tournament of the year, on Wednesday (times AEST; GMT+11):

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 Denmark's Caroline Wozniacki in action during the match against Ukraine's Dayana Yastremska REUTERS/Hannah Mckay

0015 FOGNINI OUTLASTS HOME HOPE THOMPSON

Italy's Fabio Fognini, seeded 12th, was pushed to five sets for the second straight match as he overcame home favourite Jordan Thompson 7-6(4) 6-1 3-6 4-6 7-6(4) in a match lasting four hours and five minutes.

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 Japan's Naomi Osaka celebrates during the match against China's Saisai Zheng REUTERS/Hannah Mckay

2230 FEDERER COASTS INTO THIRD ROUND

Third seed Roger Federer, chasing a record-extending 21st Grand Slam title, has reached the third round at Melbourne Park for the 21st straight year with a 6-1 6-4 6-1 victory over Serbia's Filip Krajinovic.

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 China's Saisai Zheng in action during the match against Japan's Naomi Osaka REUTERS/Hannah Mckay

2035 SERENA OVERCOMES ZIDANSEK

Serena Williams stayed on course for a record-equalling 24th Grand Slam singles crown with a 6-2 6-3 win over Slovenian world number 70 Tamara Zidansek in their first career meeting.

Williams, a seven-times Australian Open winner, fired seven aces and 25 winners to prevail in 78 minutes and will take on China's 27th seed Wang Qiang next.

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Czech Republic’s Petra Kvitova in action during the match against Spain’s Paula Badosa. REUTERS/Issei Kato

1934 DIMITROV FELLED BY AMERICAN PAUL

Unseeded American Tommy Paul ended Bulgarian 18th seed Grigor Dimitrov's hopes of capturing his first Grand Slam title as the world number 80 won 6-4 7-6(6) 3-6 6-7(3) 7-6(3) in four hours and 19 minutes.

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Spain’s Paula Badosa in action during the match against Czech Republic’s Petra Kvitova. REUTERS/Issei Kato REFILE - CORRECTING ROUND

1828 SCHOOL IS COOL FOR DJOKOVIC AFTER BALI TRIP

Novak Djokovic was in a relaxed mood following his win over Tatsuma Ito, talking about his off-season trip to the Indonesian island of Bali where the Serb was left particularly impressed by a local school.

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 21, 2020. Australia's Nick Kyrgios celebrates after winning his match against Italy's Lorenzo Sonego REUTERS/Issei Kato

"What got me to go there with my wife is a green school in Bali, a unique concept of education. That was interesting to us," Djokovic told reporters.

"For the last couple years, we've known about the concept. We've been introduced to it by our friends who have their kid in the school in Bali... we might have our children actually attend that concept in the near future."

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 21, 2020. Germany's Alexander Zverev in action during his match against Italy's Marco Cecchinato REUTERS/Kai Pfaffenbach

1732 WOZNIACKI HAS SPECIAL MEMORIES OF 'SWEET CAROLINE'

Caroline Wozniacki, who fought back to beat Ukraine's Dayana Yastremska, recalled her finest moment in Melbourne when she captured her only Grand Slam title and Neil Diamond's 'Sweet Caroline' filled the air following her triumph.

"I don't know if I can count how many times I've heard that song. It's a special song for me, especially here," the Dane, who will retire after the tournament, told reporters.

"It's a great memory. It means a lot after great wins like this that it gets played."

1305 KVITOVA DOWNS BADOSA

Two-time Wimbledon champion Petra Kvitova fired seven aces and 31 winners in a tight 7-5 7-5 victory over Spain's Paula Badosa in their first career meeting.

1257 CATCHING BARTY IS NOT OSAKA'S IMMEDIATE PRIORITY

Defending champion Naomi Osaka said after her win over Zheng Saisai that she was not giving too much thought to reclaiming the world number one ranking, with top-ranked Ash Barty well in front of the Japanese third seed.

"Ash is like 2,000 points ahead of me and I have to defend this, I'm like yo, I'm going to drop out of the top 10 for real," the 22-year-old said.

1246 OSAKA STAVES OFF ZHENG CHALLENGE

Defending champion Naomi Osaka fended off a strong comeback attempt from China's Zheng Saisai, rallying from 4-2 down in the second set to prevail 6-2 6-4 and reach the third round.

1100 PLAY UNDERWAY

The temperature is forecast to reach 32 degrees Celsius (90F) before a late cool change brings rain.

(Compiled by Ian Ransom, Shrivathsa Sridhar and Hardik Vyas; Editing by Peter Rutherford, Kim Coghill and Alex Richardson)