He hasn't proposed to Niall Horan, although they would make a lovely couple, he has of course allegedly popped the question to his girlfriend of almost a year, Erica Stoll. 

So, why does the internet think the 26-year-old no. 1 golfer has proposed? He posted a picture of the Eiffel Tower to his Facebook. 

When his reps were approached regarding the alleged proposal, one reportedly said: "We don’t comment on speculation about our client’s personal life." A source speaking via the Independent, however, claims that "McIlroy has popped the question and the happy couple are over the moon."

Speaking of his Stoll last month, he said: "She is from America which is why I like to spend time in Spring Beach. She doesn't play golf but she is involved. I am very happy in my love life. If everything off the golf course is good, it allows you to be better on it as well."

The golfer, who is worth in the region of €400m, endured a public breakup with former fiance - tennis ace Caroline Wozniacki - in May 2014, not long before their wedding was due to take place in New York. Speaking at the time, Rory said: "The wedding invitations issued at the weekend made me realize that I wasn’t ready for all that marriage entails."

Neither Stoll nor McIlroy have confirmed or denied the engagement rumours.