Legend has it that celebrity deaths come in trios. It's true also that ending a relationship makes for a death of sorts, and the same can be said for those non-romantic relationships known as player-coach couplings. In the past week we've received word that two such pairs are parting ways: The presumed greatest of all time Roger Federer and his trusty aide Paul Annacone, and up-and-coming British starlet Laura Robson and her coach Miles Maclagan. Annacone believes Fed will take another Grand Slam title, which would be his eighteenth, while Robson is likely to look among her fellow Brits—Nigel Sears, erstwhile coach of Ana Ivanovic and Daniela Hantuchova?—for her next aide.

The former tandem was together for three and a half years, while the latter pair got on for all of four months, if smashingly so in Robson's own words. Not to be macabre, but we are on the cusp of Halloween, and all this begs the question: Who's next? What celebrity coach-pro team will next call it quits to fill out this unfortunate triumvirate?

Register your most educated guesses in the comment thread below and let's see who emerges, well, some sort of victorious. And no, the Spin is going to stay tight-lipped for now as to who might likely complete this unholy troika. In the meantime, let the speculating begin.

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