“I went to see my good friend Zack (with his torn Achilles) perform last night at Madison Square Garden, one of the most hallowed venues in the modern world,” Friedman wrote on Instagram. Just as Rage Against the Machine finished that fateful Chicago concert with de la Rocha sitting down, the band completed the rest of their North American tour (wrapping up tonight, August 14th, with another show at the Garden) with their leader seated at the front of the stage. However, they were forced to cancel the UK/European leg of the tour, slated for August and September, “per medical guidance” for the injury.