Barcelona and Argentina star Lionel Messi visited a Buenos Aires hospital on Thursday where he had a scan on the muscle injury in his right leg that has kept him out of action for over a month.

Donato Villani, doctor with the Argentina national team, said he was pleased with the progress of the 18-year-old.

"The injury is progressing well but we can not set a date for his return because that would put extra pressure on him," said Villani.