The future of Argentine International is in doubt as he will have to be a free transfer agent on Thursday.
Barcelona have been confident in urging the Argentine to commit to a new level since Joan Laporta took office as president in March.
According to The Spanish media, Sports suggests that an agreement has already been reached between the Catalans and Leo Messi, with an announcement that could be made as soon as possible on Wednesday.
Leo Messi, who has spent all of his careers at Camp Nou, is believed to have written a 2-year extension that will take 2023.
