It's been over six years since Lleyton Hewitt tasted success against Roger Federer.
On September 15 2003 at Rod Laver Arena, Hewitt battled back from two sets and a break down to defeat Federer 5-7 2-6 7-6 (7-4) 7-5 6-1 in a Davis Cup rubber.
Since then the two have played 14 times, seven of which have been in Grand Slams, with the Swiss maestro winning on each occasion.
On that day at Melbourne Park in 2003, Federer served for the match in the third set and it looked like he'd send the semi-final tie into a deciding fifth rubber.
Federer was at his dominant best in the first two sets as the then 22-year-old Australian struggled to stay in the match.
But just when it looked like the match was over, Hewitt showed his fighting spirit and broke back when he just when he needed to.
The set went to a tiebreak, which Hewitt won, and it was game on again.
And, with the momentum behind him, he clinched the fourth after breaking Federer in the 12th game.
From that point, there was only going to be one winner as Hewitt raced through the final set to seal a famous victory, one he ranks as the best of his career.
"This beats the hell out of winning Wimbledon and the US Open," he said after the match.
The two, who are born just eight months apart, have had a rivalry dating back to their junior days at the World Youth Cup in 1996.
Hewitt is one of the few players on the ATP Tour to have had a positive win-loss record against Federer, winning seven of their first nine encounters.
But since then it's all gone pear-shaped for Hewitt and it now seems unlikely that he'll ever beat the 15-time Grand Slam champion again.
But don't tell him that.
"Yeah, it does take a great performance to beat him. That's why he's been the greatest player possibly ever," Hewitt said after beating Marcos Baghdatis in the third round.
"But you play for those moments, to play against the best players - Roger is that. This is what motivates you. If you can't get up for these matches, you shouldn't be playing the game."
While the Federer-Rafael Nadal rivalry will probably go down as one of the greatest in history, currently no two players on tour have played each other more times than Hewitt and Federer.