Speculation about the future of Messi has been rife for several months now after the Argentinian superstar - who scored a hat-trick to book his country's World Cup place on Wednesday - entered the final year of his contract at Camp Nou.
"But I think Messi, like [Cristiano] Ronaldo, are players who are symbols of their clubs and it's hard for them to leave".
"I would love to [see Messi join] - who wouldn't love to have Leo in his team?"
Messi's heroics against Ecuador on Tuesday steered the two-time World Cup champions to Russian Federation 2018.
Russia May Demand US Cut Diplomatic Staff
Earlier Russia's envoy to Washington Anatoly Antonov said he had sent a "decisive protest" to the U.S. over the removed flags. The demand followed a vote to tighten sanctions on Russian Federation .
Aguero's injuries were expected to keep him out of action for between two and four weeks but the 29-year-old realises the accident could have left him in a much worse condition.
Aguero told broadcaster TyC Sport: "The money isn't a problem here, but I think Messi, like Ronaldo, is a player who is a symbol of their club and it's hard for them to leave". He said, "I don't believe so".
The 29-year-old suffered a broken rib after being involved in a vehicle crash during a day off in Amsterdam last month, with the initial reports suggesting that he could be out of action for up to six weeks.