Reported by Ole.

According to the source, the Argentine will be able to take part in the training of the Catalan team, which will take place on September 7, if the test result is negative.

Messi announced that he will remain with Barcelona for one more season.

He will probably leave the Catalans next summer after the expiration of the contract. 

Earlier, Enrique expressed the opinion that Barcelona will continue to win without Messi.