Argentina forward Messi played under Guardiola for four seasons at Barca, during which time they won 14 titles.
Lionel Messi rejected an incredible offer to join Manchester City, the Premier League champions' chairman has revealed.
Messi played under Pep Guardiola for four years at Barcelona and City have always been suitors of the 31-year-old but the chances of him moving to the Premier League at this stage of his career are slim.
The 31-year-old linked up with Barcelona in 2001, and has gone to become one of the greatest players in the history of football with 563 goals being scored in 648 appearances in all competitions.
The reference was believed to be in connection with Messi's extreme nerves before games that have seen him vomit ahead of some important matches.
"He is the best in the world along with Cristiano [Ronaldo]".
However, he has failed to add to his trophy haul or produce his best form in national colours, losing four finals - three in the Copa America and the 2014 World Cup final against Germany.
In an extraordinary interview with Fox Sports, Maradona - who along with Brazil's Pele is widely considered one of the greatest footballers of all time -suggested Messi was a different player with his club than he was with the national side.
"I wouldn't call him up right now, but never say never", he said.
The World Cup victor was speaking about the Argentina national team and discussed the No.10, suggesting that Messi's pre-match behaviour should rule him out of a leadership role.
This time previous year Messi scored a hat-trick as Argentina beat Ecuador 3-1 in a must win game to see them qualify for Russian Federation 2018.
"There's a need to take the leadership away from Messi, as we want him to be Messi, which he wouldn't be".