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T.J. Watt underwent surgery on Thursday to repair and stabilize a partially collapsed lung after a dry needling treatment session at the Pittsburgh Steelers facility ... his brother, J.J. , announced on Friday.

Watt shared the news on social media after the team announced he was admitted to the hospital with a health scare. While no recovery timeline is currently available, he is expected to be released from the hospital on Friday. Getty

"He and his family are very appreciative of everyone's kind words and well wishes," J.J. said.

NFL insider Ian Rapoport said dry needling is a treatment many players in the league undergo without any complications. It's used to alleviate general soreness, but after his treatment, he says Watt was left in "extreme pain, and doctors

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