I found the Roger Federer reference telling from a member of Rory McIlroy's camp, as quoted in Derek Lawrenson's Daily Mail story following a final round 68 at Quail Hollow.
‘There’s a lot to be said for what Roger Federer did in tennis,’ said one of his inner circle, referring to the five months the Swiss legend took off to get fit before coming back to win the Australian Open in January.
That sounds like a season shutdown, something McIlroy did not dispel following the round.
‘So right now, to be perfectly honest, I don’t know what to do. You might not see me now until next year. You might see me in a fortnight at the FedEx Cup. What I do know is that if I want to challenge on a consistent basis, I need to get 100 per cent healthy.’