It appears Killer Mike was injured during that Run The Jewels stage attack last Monday.

During the duo's set at Stubb's on Friday, he addressed the issue saying he's been diagnosed with a torn rotator cuff by his doctor. The doctor also advised him to wear a sling, which Killer Mike promptly refused: "I was like, 'Doctor, I'm not leaving the road'. The tour goes on!"

The incident was also mentioned by El-P before they played 'Banana Clipper': "Last time we did this song, it was interrupted. Let's not let that happen again."

Run The Jewels are currently touring the United States before heading to Europe at the end of May.