The famous Argentinean and Barcelona striker Lionel Messi , could very well leave Barcelona in the year 2021, now that will be when his contract with Barcelona comes to a end and he will also be 34, thirty four years old by then. Now according to his latest contract signed between Lionel Messi and the Spanish giants Barcelona, which has a vey special clause added on. The clause says that if and when Lionel Messi leaves Barcelona in the year 2021, e can leave Barcelona on a free transfer but he can not sign up for any elite club in the world. This means like his fellow team mates Xavi Hernandez and Andres Iniesta, ad the same clause added to their last contract at Barcelona, and that is why Xavi Hernandez is playing for a club in Qatar and Andres Iniesta is playing for a club in Japan, and they do not play for big clubs in Europe. So Manchester City can very well forget of ever signing Lionel Messi.