The Barcelona star netted a double for the South American side in their 7-0 win over Hong Kong and feels they are starting to reap the benefits of the new coach's system

Lionel Messi feels Argentina are in a period of transition, but insists the team are adapting well to Gerardo Martino 's style and improving.

The Barcelona star scored twice in the Albiceleste's 7-0 win over Hong Kong on Monday as they looked to recover from their defeat to Brazil on Saturday.

And Messi says he was happy to see his side put in a strong performance, but insists it will take time for the South American side to reach their peak under his old coach at Camp Nou.

"In every game, the obligation is to play well and win," he told reporters after the match. "It doesn't matter what the result is. That's for official competitions.

"Now we are in a process of change, which will take time. But this win comes in handy, regardless of the outcome and the opponent.

"Argentina are always forced to challenge for every championship. Unfortunately, many do not get anything done. We came close in the World Cup and we are preparing to try to win the Copa America.

"Like any coach, Martino has his ideas. He is similar to Alejandro Sabella in some respects. He isn't better or worse, just different. And we are adapting to what he wants now."