Images from Day 3 of the 2016 Australian Open in Melbourne, on Wednesday
World number one Novak Djokovic gave French teenager Quentin Halys a free tennis lesson for about an hour before the wildcard showed how much he had learnt in the Serb's 6-1, 6-2, 7-6(3), Australian Open second round win on Wednesday.
Djokovic was at his clinically efficient best in the first two sets as he looked to be tactically three shots ahead of Halys and he opened up space on court at will while he romped to a 2-0 lead inside an hour.
The 19-year-old wildcard, ranked 167th in the world, then fought back in the third set, breaking the Serb for the first time and putting him under pressure before Djokovic ran away with the tie-break.
Djokovic, who is aiming for a record-equalling sixth Australian Open title, will next face either Italy's Andreas Seppi or American Denis Kudla in the third round.
Top seed Serena Williams made light work of unseeded Taiwanese Hsieh Su-wei to charge into the Australian Open third round with a 6-1, 6-2 victory, on Wednesday.
The World number one, bidding for a 22nd Grand Slam title to match the great Steffi Graf, cruised through the one-hour romp in glorious sunshine at Rod Laver Arena without dropping serve.
The 90th-ranked Hsieh, a two-time Grand Slam doubles champion, prised three break-points but the American saved them all and closed out the match with a huge ace.
"I think I was really focused and that first round really helped me because I was really just fighting," world number one Williams told reporters after setting up a third-round clash against 18-year-old Russian Daria Kasatkina.
"I really gave a big effort there. Today again, I just wanted to stay focused for the whole time.
"I don't think I made that many errors today. Something I was hopefully trying to get back into. And I moved much better today, so slowly but surely, feeling a little bit better."
Roger Federer overcame some feisty resistance from Alexandr Dolgopolov to safely advance to the third round of the Australian Open with a 6-3, 7-5, 6-1 victory on Wednesday.
The Swiss third seed had romped through the opening set of their second round clash on Rod Laver Arena in just 26 minutes before the 27-year-old Ukrainian started to assert pressure on Federer's serve in the second.
Federer held firm before applying some pressure of his own, eventually breaking the World number 35 in the 11th game before serving out the set in 45 minutes.
Dolgopolov's resolve faded away in the third, with Federer breaking his opponent's serve three times to clinch the contest in 93 minutes and maintain his quest for a fifth title in Melbourne.
Fifth seed and last year's runner-up Maria Sharapova cruised into the third round with a 6-2, 6-1 rout of unseeded Belarusian Aliaksandra Sasnovich in the opening match at Rod Laver Arena.
The first big upset of the day in the women's competition took place when former World No 2 Petra Kvitova was knocked out by Australian Daria Gavrilova 6-4,6-4 to advance to her third round of the Australian Open on Wednesday.
This is the first time that the Russia-born Gavrilova has made it this far at a Grand Slam.
The Czech sixth seed, a semi-finalist at Melbourne Park four years ago, made 35 unforced errors and was broken five times in the 89-minute contest, to the delight of the partisan crowd on Margaret Court Arena.
Kvitova rallied to save a match point and break back for 5-4 in the final set but 21-year-old Gavrilova claimed the victory when the world number seven went long with a forehand in the next game.
Moscow-born Gavrilova, who paired up with Nick Kyrgios to win the Hopman Cup for Australia at the start of the year, will play France's Kristina Mladenovic in her first trip to the th
Canadian Eugenie Bouchard's hopes of rehabilitation at the Australian Open came to a swift end on Wednesday as wily Agnieszka Radwanska sent her spinning out of the tournament with a 6-4, 6-2 defeat in the second round.
The 21-year-old Bouchard crumbled under the lights of Rod Laver Arena after sprinting into a 4-2 lead in the first set.
She lost six straight games to gift the set and an early break in the second to the Polish fourth seed, and was then powerless to mount a challenge as her forehand misfired and the errors started piling up.
Two-times Grand Slam champion Svetlana Kuznetsova was dumped out of the tournament by former doubles winner Kateryna Bondarenko 6-1, 7-5 at the Hisense Arena.
Kuznetsova, seeded 23rd, rallied from 5-3 down in a fiercely contested second set but Ukrainian Bondarenko held firm and sealed the win on the second match point.
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