The former England captain selected Miami as his side's home location and will look to bring in a player of Ronaldo's calibre to, presumably, promote the brand.
"Becks understands the need for a big, big name in the team when it gets going," and MLS insider told The Sun.
"And none come bigger than Ronaldo - the world's greatest player."
"Ronaldo loves America and all that it offers."
"It's not a secret he has thought about finishing his career here, about living here - so a deal like this could be perfect for him."
"It is a long way off yet - we're talking 2017 - but it clearly demonstrates the ambition of the Beckham franchise."
The Portuguese skipper just signed a 5-year contract with the Los Blancos in September 2013, but the rumoured move may depend on the 29-year-old's willingness to stay at the Bernabeu vis-à-vis Real's interest in holding on to him when that time comes.