Could 2015 finally be the year that Roger Federer calls an end to his illustrious career? - Some comments he made the other day in the press make me think that the end could be sooner rather than later.
For some time it appeared as though the former world no.1 was finished, especially after a disappointing 2013 and slow first half to 2014, but in the last few months the Swiss veteran showed that you still teach an old dog new tricks.
The only thing that has been missing for a few years, even with the recent return to form, has been Grand Slam no.18. Many Masters titles, a great run at the ATP Finals and even a maiden Davis Cup trophy for Switzerland; but another major continues to elude him.
It's not as if he hasn't gone close of course, Federer was denied in the Wimbledon final this summer in a five-set Centre Court classic by Novak Djokovic and then succumbed in the US Open semi finals to eventual shock winner Marin Cilic.
Over Christmas, the 33-year-old took part in an interview with BBC Radio Four in which he said: " I must say - and this is honest - I don't know if I would still be playing if they put me on Court 4 every day.
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"That would be difficult for me, having played on all these wonderful courts around the world and now playing in front of a fraction of those people - that would be rough."
Federer remains a Centre Court attraction wherever he goes, mostly because of his great form. However, it will be difficult for him to continue at those levels this year, his star status may wane.
Rafael Nadal has now had ample time over December to completely recover from his various injuries and will hope to make-up for lost time in 2014. The Spaniard often has Federer under control when they play.
Similarly, Novak Djokovic's threat is ever-present. The world no.1 is in a league of his own right now, and expect to see him at more finals this year in his ever-consistent fashion.
Add Nadal and Djokovic to the list of upcoming stars who will expect to make headway this year, and all of a sudden Federer is facing a fight to get beyond the last eight of various tournaments.
Kei Nishikori continues to rise, as does Milos Raonic; both have age on their side. Cilic will want to prove his US Open win was no fluke. Grigor Dimitrov is adding more consistency to his potential every week. Oh, and Andy Murray is still active.
All of these players will be fighting to be the Centre Court attraction this year. It gets said a lot, but Federer is not getting younger and his past glories may not keep him in central focus for too much longer.
I'm not saying that he should retire, of course, it's great to have him still playing, he's a living legend. However, he said himself that he must be the centre of attention... what does that tell you? - Feel free to disagree, but do not be surprised if, by next Christmas, Roger Federer has called it a day.