Pittsburgh Steelers linebacker T.J. Watt has undergone surgery to repair a partially collapsed lung sustained during a dry-needling session and will miss Monday night's game against Miami.

Watt isn't playing Monday night due to a lung injury. The star had surgery on Thursday to fix the issue, which was revealed as a partially collapsed lung, according to ESPN. The injury occurred due to a dry needling session at the Steelers' facility. It's not clear how long Watt will be out.

Jack Sawyer is listed as Watt's backup on the Steelers' depth chart. Sawyer is a rookie who was drafted in the fourth round of the 2025 NFL Draft.

T.J. Watt enjoys being a mentor. Yes, the Pittsburgh Steelers linebacker understands it’s part of the job when you’re among the best in the world

Ex-Houston Texans DE JJ Watt revealed the latest on his brother, Pittsburgh Steelers LB TJ Watt, after he suffered a lung injury.

Pittsburgh Steelers linebacker T.J. Watt was hospitalized after a dry needling procedure led to a partially collapsed lung. Will Watt play tonight?

Watt was fined $11,593 as a consequence of an unnecessary roughness penalty against the Baltimore Ravens in the Steelers’ last game, a 27-22 win. The Steelers star was called for a late hit. He will have a chance to appeal the fine.

A routine treatment at the Pittsburgh Steelers' facility Wednesday sent their star linebacker to the hospital. Here's the latest on his status.

The Pittsburgh Steelers have been waiting for further updates on superstar pass-rusher T.J. Watt. The 31-year-old outside linebacker was hospitali

The latest update on T.J. Watt provides a good long-term prognosis after a health scare, but bad news for the Steelers in Week 15.

Well, the cause of Pittsburgh Steelers linebacker T.J. Watt's partial lung collapse has finally been revealed. According to his brother J.J., the injury was suffered during a dry needling session at the team facility. The elder Watt said he has surgery to stabilize it on Wednesday and is being released from the hospital on Friday.