He was sent off in an ambulance, then the remaining eight members returned to complete their performance. Frontman Corey Taylor told the crowd: "I'm sorry to say that our bass player, Alex - something happened. I'm not sure what happened. He's going to the hospital as we speak. I want you to all make some noise for him - send him some f***ing love."

He continued: "We had a choice to come back out here. We've had to modify some sh*t, but we're going to keep on playing for you. It's what we want. It's what Alex would f***ing want."