Last week, Barca were rocked by the news that Messi was considering leaving the Camp Nou when his contract expires next season after growing unhappy at the manner in which the club is currently being run.
Rivaldo, who scored 130 goals in 235 appearances for the Catalan giants, has since explained why he believes the Bianconeri should jump at the opportunity to sign the 33-year-old if he becomes available.
"With all this speculation, I believe that some agents are already dreaming about a Messi-Ronaldo double at Juventus and how big it will be around the globe," Rivaldo said in his latest Betfair column.
"There would be a world 'boom' and I believe Juventus would quickly recover any investment on the Argentinian thanks to the boost they would get from visibility and marketing.
"It would be monumental to see both playing together and I'm sure many Juve sponsors would love to help this happen financially, so, it's also a possibility for Messi.
"If there are rumours about his exit then, of course, every club will be thinking about how they can sign him and, that said, the two best players in the world for the past 10 years playing at the same club would be massive."