Happy 33rd birthday Roger Federer! Remember that age is just a number, plenty of other sporting legend have defied their advancing years.
The Swiss star hasn't been as successful in his thirties as he may have liked, it has been over two years since the former world no.1 added to his record breaking Grand Slam collection after all.
Where is no.18 going to come from, that's the big question. Novak Djokovic and Rafael Nadal - still safely in their twenties - are always going to be a thorn in his side until the day he finally hangs up his racquet.
What Roger Federer needs is a resurgence, a second wind as it were. It's certainly not impossible to envisage it.
The world no.3 is still an incredibly fit athlete, his heroic yet ultimately unsuccessful performance in the recent Wimbledon final lends evidence to that. Many sporting stars have shown that with a good level of fitness, you can thrive into the late thirties.
I've compiled the top three, the very cream of the crop, of high-profile stars who adapted their game to continue domination.
These guys put us all to shame, lets hope Roger Federer can copy their example.