Looking back at the 4 times Federer and Djokovic have met at the Australian Open

Roger Federer and Novak Djokovic are the two most successful players in the history of the Australian Open. The duo, with 6 and 7 titles respectively at the tournament, have won more than a quarter of the Australian Open titles in the Open Era.

Not surprisingly, Federer (102) and Djokovic (73) have the most match wins and most finals (7 apiece) of any player at Melbourne Park.

The two met for the first time at a Grand Slam tournament in the fourth round of the 2007 Australian - a contest which went the way of Federer, who went on to win his third title at the tournament that year. Since that meeting, the duo have locked horns on 15 subsequent occasions at Majors, which includes 3 meetings at the first Grand Slam tournament on the tennis calendar.

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As Federer looks to end a five-match Grand Slam losing streak against Djokovic, let us have a look at how the four match-ups between the two most successful players at the Australian Open materialized:

#1 2007 4R: Federer beats Djokovic 6-2, 7-5, 6-3

Djokovic (left) and Federer at the 2007 Australian Open

Defending champion Roger Federer faced up-and-coming Serbian teenager Novak Djokovic in the fourth round of the 2007 Australian Open. It was the pair's third meeting, having previously met in the opening round at 2006 Monte Carlo and in a Davis Cup clash between Serbia and Switzerland later that season.

The dominant World No. 1 trumped Djokovic in straight sets, sending down 12 aces and dropping just 20 points on serve. He ran out a 6-2, 7-5, 6-3 winner in under two hours.

Federer would go on to successfully defend his title, in the process becoming the first player since Bjorn Borg at 1980 Roland Garros to win a Grand Slam without dropping a set.

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#2 2008 Semifinals: Djokovic beats Federer 7-5, 6-3, 7-6(5)

Djokovic ended Federer's title defence at the 2008 Australian Open

Having registered his first win over Federer in five meetings earlier in the season, in the final of the Coupe Rogers, Djokovic fell short in the pair's first Grand Slam final meeting - at the 2007 US Open.

The opportunity for retribution would arrive swiftly for the Serb though, as the then 20-year-old locked horns with the two-time defending champion in the semifinals of the 2008 Australian Open.

In the early exchanges in the pair's seventh meeting - and third at a Grand Slam tournament - there was little inkling of the eventual outcome in store.Federer served for the first set at 5-3, only for Djokovic to reel off four straight games to grab the opening set. He then surged to a 5-1 lead in the second, which would change the complexion of the match.

Although Federer recouped one of the breaks back it was too late to salvage the second set and Djokovic opened a commanding two-set advantage. In a competitive third set, Federer failed to convert a set point in the 12th game and Djokovic converted his first match point in the ensuing tiebreak to emerge a straight-sets victor.

In the process, the young Serb reduced his head-to-head deficit against Federer to 2-6 and recorded his first Grand Slam match win over the then 10-time Grand Slam champion. Federer on his part suffered his first straight-sets defeat at the tournament since going down to Frenchman Arnaud Clement in the third round in 2001.

The Serb would go on to beat Jo-Wilfried Tsonga in the final to open his Grand Slam title account.

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#3 2011 Semifinals: Djokovic beats Federer 7-6(3), 7-5, 6-4

Djokovic (left) beats Federer at the 2011 Australian Open

Having won just 6 of their previous 19 matches, Djokovic met Federer for the 20th time in the semifinals of the 2011 Australian Open.

Djokovic was coming off a resounding defeat to Federer at the 2010 ATP Finals, after having saved a match point in the US Open semifinals to record his second Grand Slam match win over the Swiss maestro in six matches.

In a competitive opening set where neither player was able to break serve, Djokovic took a one set lead by clinching the ensuing tiebreak courtesy some powerful baseline play. The defending champion Federer was not in a mood to roll over without a fight though.

The then 16-time Grand Slam champion overcame an early break in the second to take a 5-2 lead. Not for the first time though, Federer rued not serving out a set against Djokovic as the Serb took a two lead.

Federer now needed to do an encore of the feat he accomplished against Gilles Simon in the second round, when the Swiss recovered a two set deficit. But the big difference this time was the opponent across the other side of the net.

Djokovic had the first break in the third, only for Federer to break back. But the usually unflappable Swiss, struggling to rein in his unforced errors, lost serve again which brought the match to its conclusion.

Djokovic would go on to beat Andy Murray for his second Grand Slam title and second title at the tournament, in a banner season which would see the Serb as the newest World No. 1.

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#4 2016 Semifinals: Djokovic beats Federer 6-1, 6-2, 3-6, 6-3

Federer(left) struggled to contain the Djokovic onslaught at the 2016 Australian Open

Producing one of his best performances against Federer, Djokovic took the lead (23-22) for the first time in the pair's epic rivalry with a win in the 2016 Australian Open semifinals.

Having committed a whopping 100 unforced errors in a five-set fourth round win over Gilles Simon, Djokovic looked like a man possessed with a place in the final at stake. The opening two sets were but a blur as Djokovic, conceding just three games, whizzed to a two set lead under an hour.

Federer managed to stop the rot in the third set, seeing his first break points of the match and converting his fifth en route to taking it 6-3. It marked the 34-year-old's first set against Djokovic since the pair's first meeting in the fourth round of the 2007 edition of the tournament.

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But that would be as good as it would get for Federer on the night.

Djokovic soon resumed normal service in the fourth, laying siege on the Federer serve - which cracked in the eighth game of the set. Federer produced one of the points of the tournament at 15-30 but Djokovic won the next two points on the Swiss' serve and promptly served it out to love.

It was the Serb's 37th win in 38 matches in all competitions, with his only defeat coming to Federer at the ATP Finals. Djokovic would go on to win his 6th Australian Open title and 1st at Roland Garros to become the first player since Rod Laver (1969) to hold all 4 major titles.

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