The 30-year-old posted a black-and-white photo of himself inside a room with two other people - possibly journalists, but maybe just friends - alongside the intriguing caption: “Exciting news to share with you [on Tuesday]. Can’t wait!”
At this moment in time it’s unclear what the announcement might be - although judging by some of the replies on both Instagram and Twitter, United fans are very excited it might concern the Red Devils.
In all probability, Ronaldo’s news won’t be anywhere as exciting as that and Manchester United fans really shouldn’t get too carried away.
Real Madrid have no intention of selling Ronaldo this summer, with the three-time Ballon d’Or winner contracted to the Bernabeu outfit until 2018.
United fans express their excitement
But all rationality can go out the window when high-profile football leave cryptic messages on social media - and many of the replies were from Manchester United supporters wondering if Ronaldo is hours away from announcing the news they’ve waited the past six years to hear.
One user wrote: “Please tell me you are coming back to Manchester United!!”
While another posted: “You're signing for United?!”
Ronaldo is happy and Real Madrid won't sell
Although it’s no secret Manchester United would love to bring Ronaldo back to Old Trafford, the deal is a no-goer because Real Madrid will not sell.
Furthermore, Ronaldo has made it perfectly clear that he is happy at the Bernabeu, where he has scored a staggering 313 goals in 300 appearances and won the previous two Ballon d’Or awards.
Manchester United will always hold a special place in the heart of Ronaldo, who went from skinny teenager to world beater during his six years at Old Trafford, but the odds of him making a return lengthen will each passing year.
However, he remains one of the world’s great players and, all the time he’s scoring goals for fun in La Liga, Manchester United will be keen to bring him ‘home’.
Spanish newspaper AS have revealed today that Ronaldo is one of three Real Madrid players on United’s radar.
The Red Devils are also keen on Gareth Bale, Karim Benzema and Raphael Varane.
Manchester United fans: do you think Cristiano Ronaldo will ever return to Old Trafford? Let us know by leaving a comment in the box below!