Barcelona manager Gerardo Martino has insisted that Lionel Messi is fully fit ahead of Wednesday's Champions League clash with Ajax.

The Argentine has been battling a hamstring injury in the early stages of the campaign, but Martino is confident that his injury troubles are behind him.

"Leo Messi has to be one of the players that has featured in fewer minutes [so far this season]," Martino told a press conference.

"He was out against Malaga, he played 45 minutes against Atletico Madrid in the [Supercopa] first leg and with Argentina he only played one match, so he is fit.

"He has recovered from that hamstring blow against Atletico so we think he's fine to carry on playing. We will see what happens in the future and how or when we rest him."

Messi has scored six goals in five games this season.