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T.J. Watt expected to miss about 6 weeks (0:31)

According to a report, T.J. Watt could return in about six weeks for the PittsburghSteelers. There is a 0:31

11:32 AM ET

T.J. Watt will be out for at least four games due to an injury.

In the first game of the season, Watt tore his chest muscle in the final seconds of the game. According to a source, Watt could return in about six weeks.

"I can tell you that T.J. won't play this week, but I won't make any commitments beyond that," he said. We will continue to look at the situation and get opinions and do what's appropriate.

David Anenih was signed to the Pittsburgh's 53-man roster from the TennesseeTitans practice squad. Anenih finished the preseason with three sacks. Ryan Anderson was signed to the practice squad by the Steelers.

Alex Highsmith, a third-year outside linebacker, will be relied on a lot without Watt. Four quarterback hits were recorded by him.

"I don't know if anyone is shocked by the performance," he said. Most of us expect it to keep going. He's a good player but you're not going to get three sacks every week.

Outside linebackers Jamir Jones, who was recently picked up off waivers, and Malik Reed, who they acquired in a trade before the season, will also be used to fill in for Watt.