Every tennis player strives to win a Grand Slam title, as it is the benchmark which defines your overall career.

For many, they fall short of the goal, but it is not for the lack of trying.

Winning a major title takes a great deal of dedication, sacrifice, skill, and sometimes, a level of luck.

So, for someone as successful as Roger Federer, who has won 18 Grand Slams, you may wonder if there was a particular success which stands out in his mind.

Speaking after his emphatic win over Grigor Dimitrov at Wimbledon, Federer revealed that it is his most recent major victory, the Australian Open in January, which the Swiss superstar holds dearly.

"Yeah, it was one of the most special ones.

"I definitely put it in the top five at least, if not top three, of my best feelings I ever had after winning, what it meant to me, under the circumstances, on the comeback, in the finals against Rafa, having had the five-setters throughout the tournaments as well.

"You know, I had some tough battles against Rafa over the years, but that came totally unexpected I think for both of us to make the finals. Every match after, even with the Berdych match, from the third round on, was like a super bonus."

Federer came into the tournament as the number 17 seed having missed most of the second half of the 2016 season with a knee injury.

It was the first time that the 36-year-old had been out of the top 10 seeds in a major since the US Open in 2002, where he was just making his way in the sport and was ranked 13th.

Coming as a lower ranked player, he had plenty of obstacles to overcome, starting with Czech player Tomas Berdych in round three, who he defeated in straight sets.

He then defeated the Japanese star Kei Nishikori coming from two sets to one down, before comfortably defeating Mischa Zverev who was coming off the high of beating Andy Murray in the previous round.

The matches against Stan Wawrinka and Rafael Nadal were five set thrillers, which had their fair share of drama attached, and with all the doubts which hung over his head coming into the tournament, the victory was something akin to a fairytale comeback.

Federer said while the success was special, the overall feel of the tournament in Melbourne was what really stood out in his mind.

"I really just had a wonderful time in Melbourne, it felt, yeah, I was on this amazing journey and I was happy to bring it all the way home.

"Maybe what I was most happy about is so many people were happy for me, that I actually was able to experience that feeling one more time to win a Grand Slam."

Naturally, there are other successes which also rate highly in Federer's mind, which include his sole French Open triumph in 2009, his first ever Wimbledon in 2003, and when he beat Andre Agassi in the 2005 US Open which was the second of his five consecutive triumph at Flushing Meadows.

He next plays the big serving Canadian Milos Raonic in the quarter finals, and while he holds a 9-3 head-to-head record in his favour, he will be looking for some revenge after Raonic beat him in five sets in the semi finals last year.

The way he is playing at the moment, you wouldn't put it past the veteran to make another final at Wimbledon where he is aiming to win his eighth grass court major title.