DeChambeau at Irish Open would be great - McIlroy

McIlroy, who also confirmed he will not play again before the PGA Tour play-offs in mid-August, added that it was "fair to say" that he is no longer as enthused by the prospect of playing on the PGA Tour and in the FedEx Cup after completing his career Grand Slam of winning all four majors.

When asked why that was the case, the 37-year-old said that "it just sort of ebbs and flows".

He explained: "There's been years where I've given it maybe more of my attention and years that I haven't. I guess I'm just at a stage that I have other things that I prioritise.

"Again, the PGA Tour is in a lot of flux at the minute with a lot of their schedule and structure and everything like that.

"So I think the change where it doesn't matter where you are in the top 30 going into the Tour Championship, it's like I just need to be in the top 30 going in there to have a chance to win a FedEx Cup. So why would I care about the first two?

"I sort of came to that decision last year and I'm just sort of doing the same thing."

The world number two was left to reflect on a week at The Open in which he says he was "stuck in neutral".

He added: "Obviously shot a good one on Friday to get myself in for the weekend and back in it. Even par over the weekend is not going to get it done.

"I just felt like any time I got a little bit of momentum out there, I seemed to make a bogey. Just one of those weeks I couldn't get it going."