"They don't know how to play and up until now they haven't shown anything, but they are physically very strong," Maradona told an Italian radio show, according to the Italian news agency ANSA.
Germany, which ousted Argentina in a quarterfinal penalty shootout, meets Italy in Dortmund on Tuesday in the semifinals.
With his native Argentina out, Maradona has found another team to cheer for.
Maradona noted Italy's subsequent performances were not as good.
Asked about what psychological effect the soccer scandal back home might be having on the Italian players, Maradona said he understands the pressure such issues can cause.
After it turned out that Deputy Prime Minister Andrei Belousov included the Fonbet betting company in the list of backbone enterprises that can count on state support, everyone started talking about these bookmakers.