"I want to lend support to a colleague who's not well," Pirlo told Italy's Sky TV.
Bolton's Muamba critical after collapsing in game →
"Italy is strong in all areas, just like they are," Pirlo said. "It's going to be a great semifinal. We've got to try and take possession of the ball, even though that's one of their characteristics too."
Euro 2012: Germany says it isn't haunted by Pirlo's pass →