Lionel Messi's previous coach at Paris Saint-Germain, Mauricio Pochettino, called the debate over his defensive play "almost stupid."

In their sixth World Cup final, Argentina will face France on Sunday in an effort to win the trophy for the first time since 1986. Messi's team will be competing in the match.

With his 26th and likely final game remaining in the World Cup, Messi will break the record for most appearances in the tournament. He also has a chance to become the first player to score 20 goals during the tournament (currently 11 goals, eight assists).

The captain of Argentina struggled early on in the competition, and several onlookers criticized his work ethic; nonetheless, he has excelled in the knockout round.

Former Albiceleste player Pochettino, who guided Messi at PSG until he was fired earlier this year, laughed off any worries and contrasted Messi with two other legendary players who weren't known for their defensive prowess.

"Honestly, I think the debate about Messi's defensive work is so stale, almost silly," he wrote in The Athletic.

"You cannot pretend that [Diego] Maradona or Pele — along with Messi, the most important players in football — were focused on trying to win the ball back. He can't participate in that. He just needs the others to run for him.

"He doesn't need to press. When you have Messi, you need the other players to understand that they have to get the ball and give it to him so he can conserve his energy and then be decisive, as shown."

Argentina's run to the final has not been all about Messi, though, with Lionel Scaloni's side proving resolute in defence.

They have restricted their opponents to just 5.7 shots per game – fewer than any other side. Indeed, they have not faced above 0.6 expected goals against in any of their six games so far.

Pochettino believes that defensive solidity and work ethic has been crucial in allowing Messi to flourish.

"Of course, Argentina need Messi, but Messi needs the other 10 players to fight for him at all times," he added. "That's one of the keys to this team: they all believe that playing for Messi, they can win the World Cup.

"You can see that the players give 120 per cent to achieve this. Different players: [Rodrigo] De Paul, [Alexis] Mac Allister, [Enzo] Fernandez, [Julian] Alvarez, they give everything they have and more, and they do it for Messi.

"They give everything because it's their dream, they are so close, and when they have Messi, they know that everything is possible.

"That's the most important thing about this Argentina team, and the reason why they are in the final. It's because the players fully understand their role. When you have Messi in your team, you have to run for him.

"And when you have the ball, you have to give it to him as soon as possible so that he can create something. So, the players know what they have to do at all times: to give Messi everything he needs to be decisive."