Argentina coach Alejandro Sabella admits his team were able to get the best out of talisman Lionel Messi in the second half of their 2-1 Group F victory over Bosnia-Herzegovina at the Maracana.
Sead Kolasinac inadvertantly turned a Messi free-kick into his own net after just three minutes to break the Bosnian resistance but much of Argentina's performance for the opening 45 minutes was uninspired.
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The Barcelona superstar responded with a much-improved display after the break and scored one of the goals of the tournament so far to claim the man-of-the-match award. Sabella admitted that his changes at the interval were designed to help Messi get into the game.
"During the first half we controlled the Bosnian team, but beyond that and handling the ball we needed more depth and that’s what we achieved in the second half," he told reporters.
"As soon as we brought in Higuain [Messi and Aguero] had more company and we were able to put together the game that has characterised Argentina for a long time.
"We brought in two things: Better provisioning and once Messi received the ball, better follow-up and better support.
"Messi is the best player in the world. It is not that he needs a lot. Beyond that there’s always a context and it can empower him a bit more. In this case the support - he received a push from his colleagues which empowered him."
Sergio Aguero sparked injury fears when he appeared to limp off the field on 87 minutes, but Sabella insists he has no long-term concerns over the Manchester City star's fitness.
"I saw he was tired," the Argentina coach added. "There was very little time to play and I wanted to make the substitution before that when it was 2-0.
"We needed a fresh player and I was between introducing another attacking player or a defensive one, but I took him out because he was tired."
Sabella also reiterated his belief that Messi does not need to win a World Cup to cement his legacy in the game.
"Messi is the best player in the world beyond what happens in this World Cup and he is among the best players of all time, beyond what happens in this World Cup," he insisted.