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The Foo Fighters’ Dave Grohl ended the band’s Gothenburg, Sweden show early on Friday after falling from the stage and injuring his leg.

“I think I just broke my leg again. I think I really broke my leg,” said Grohl on the microphone.  “So you have my promise, right now, that the Foo Fighters, we’re gonna come back and finish the show. But right now… I’m gonna go to the hospita, I’m gonna fix my leg, but then I’m gonna come back and play for you again. I’m so sorry.”

Grohl was carried off the stage on a stretcher, but kept to his promise. An hour later, he was back with a cast on his leg, and finished the show from a seated position.

Foo Fighters kick off their North American tour on July 4th in celebration of the 20th anniversary of their first album.