Steelers' Julius Welschof: Nursing knee injury

Welschof sustained a knee injury during the Steelers' 24-17 preseason loss to the Lions on Saturday, Nick Farabaugh of Steelers Breakdown reports.

Welschof had his best performance of the preseason Saturday, when he registered 2.0 sacks in the first half. He's competing for a depth spot at outside linebacker behind starters T.J. Watt and Alex Highsmith. A multi-week injury would hurt Welschof's already slim chance at making the Steelers' 53-man roster at the conclusion of training camp.