Lionel Messi is confident he has made the right decision to leave Paris Saint-Germain for Inter Miami.

Messi, 35, announced his PSG departure earlier this month and opted for a switch to MLS rather than a return to boyhood club Barcelona.

Ahead of Argentina's friendly against Indonesia on Monday, the World Cup winner told TV Publica: "I'm well. 

"Initially, we had a different idea [to return to Barcelona].

"We're happy with the decision we have taken. I'm ready and eager to face this new challenge, this change.

"[The decision] was an important step but at the same time, I was aware of what it meant, of what I was doing. We're happy."

Messi notched his 103rd international goal in Thursday's 2-0 victory over Australia, finding the net for a seventh-consecutive match — a run stretching back to the World Cup round of 16 clash with the Socceroos in Qatar.

On La Albiceleste's momentous victory in the Middle East, he added: "If I'm being honest, had we not won the World Cup, I would no longer be playing for the national team.

"I can't leave the national team as a world champion. I want to enjoy this.

"I had very hard times, but I always had the desire to win something with the national team. I knew in my mind that I would achieve it.

"Even if I didn't, I had to try. Having won everything at individual and club level, not to have been able to [win a major title] with the national team would have meant that I would be missing something.

"I enjoyed the World Cup [in Qatar] more than the previous ones because I knew it could be my last. I had complete confidence in the group."