Serena Williams has again created history this week for her own bulging chapter in tennis' book of legends by celebrating her 210th week as world no.1.
The achievement, which takes into account weeks combined over the course of a career, means that the American has surpassed 34-year-old Martina Hingis - who came out of retirement last year to play doubles only - to go fourth in the all-time list.
Getting to the top may be a step too far, however. It would take the 33-year-old another 167 weeks as world no.1 to dislodge Steffi Graf from that position.
Don't get me wrong, anything is possible with Serena - the younger of the Grand Slam winning Williams sisters, alongside Venus - such is her quality and, to be honest, lack of consistent challengers at the top of women's tennis, but, nonetheless, it's an unlikely feat.
So with that accolade looking out of reach, what else does Serena have left to play for?
Certainly not major trophies: 18 Grand Slam singles titles, 13 Grand Slam doubles titles (with Venus) and one mixed doubles Grand Slam title - that makes, if my maths are correct, an astonishing 32 Grand Slam titles in total... oh, and by the way, let's also mention the four Olympic Gold medals just for good measure.
She's won everything you could ever dream of winning at every tournament you could dream of winning.
Obviously sports stars want to be remembered as the very best. You need an ego to reach the top and continued success can massage those whims, so surely it could hurt if you start a decline.
Look at some of the greatest athletes from around the world, sometimes a few can be guilty of carrying on too long. You'd suspect Williams' rival Li Na didn't end her career in the way she might have dreamed of. Going out on a high has to be the ultimate, doesn't it?
Look at the recent football World Cup as an example. Germany finally ended a hoodoo, stretching back many years - not as bad as England's - to lift the sport's biggest prize in Brazil this summer. It provided the catalyst for captain Philipp Lahm, the World Cup's most prolific goal scorer Miroslav Klose and Per Mertesacker to bow out of international football on a high. Their last memory was one of glory.
Go out on a high
Back to tennis, and don't think for one minute that I'm saying Serena Williams isn't able to win Grand Slams anymore, look at how easily she won the US Open last month, but recent signs suggest that stage of decline could come in the not-so distant future.
Injuries and illness have effected the world no.1 throughout this year, contributing to disappointing showings at all the majors apart from Flushing Meadows. As Serena dips further into her thirties, such issues are only likely to become more commonplace one would expect.
Not now, but maybe soon, Serena should have some reflection and maybe question why she continues to put herself under strain.
She's won it all, achieved everything possible, secured her place in tennis' history books. Treat yourself to retired life, why not?
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