The 52-year-old, who managed Messi during a two-year spell as the coach of the Argentine national side, also defended his recent form.
"My little dream would be one day to coach Leo at Barca," he told Marca.
"I don't think you have the right to 'kill' Messi on the basis of two poor games
given all his goals across the season."
Maradona is currently without a managerial job.