A video emerged of Messi touching his left leg during the session on Wednesday, but Mascherano confirmed the veteran forward was ready for Miami's second Group A match in Atlanta.The coach said Messi's former Barcelona teammate Jordi Alba was available after missing the opening 0-0 draw against Al Ahly due to injury.

Mascherano meanwhile said retaining possession would be the key against Portugal's Porto, regular Champions League participants who are likely to provide the MLS team with a stern test.

--Reuters--