The former national team keeper believes that the Mannschaft’s allegedly superior big-game experience will see them home against the Albiceleste
Following the Mannschaft’s historic 7-1 demolition of Brazil in their last four, the now-retired goalkeeper is supremely confident that Joachim Low’s men will prove too strong for the Albiceleste.
“I am sure of it [Germany winning],” Lehmann told Fifa’s official website.
"We've got the best team at this World Cup: we're organised, compact and fantastic on the ball.
"You can tell that a lot of our boys, including some of the ones on the bench, are used to playing in the latter stages of the Champions League.
"Germany have got greater strength in depth and we've got more players who play at the highest level every year.
"You only need to look at the kind of big international games the Bayern [Munich] players have been involved in over the last few years.
"That makes a huge difference because you gain a lot of experience from those sorts of encounters."
Lehmann had particular praise for Manuel Neuer, his successor between the sticks for the national side.
"He's had a perfect World Cup so far," the former Arsenal man enthused. "He's without doubt the best goalkeeper there is at the moment.
"I'm especially pleased about one thing he does: back when I was a player I think I was one of the first keepers to play in the sweeper style he's been so successful with today."
Lehmann also had words of praise for an Argentine, namely Lionel Messi, but he does not feel the Barcelona No.10 will be able to
"He's more than capable of deciding matches on his own, but on Sunday I don't think he'll have it any easier than he did in the semi-final against the Netherlands - if anything it'll be harder for him," he concluded.
"Messi is outstanding but Germany have got a more complete attack and they'll break down the Argentine defence, although they might have to be patient."