Fautanu was scheduled to make his second career start when the Steelers (2-0) host the Chargers (2-0). The 23-year-old Washington product had been slowed by a knee injury during training camp but impressed coach Mike Tomlin when he was cleared to return earlier this month.

Fautanu is the third major injury Pittsburgh has suffered on the offensive front, as center Nate Herbig is out for the year with a torn rotator cuff, while offensive guard Isaac Seumalo has yet to play this season due to a pectoral injury. Another former first-round pick in Broderick Jones is expected to replace Fautanu on the right side.

So healthy throughout his University of Washington football career, Troy Fautanu injured a knee in a Pittsburgh Steelers practice on Friday and the starting rookie right tackle and first-round draft pick is sidelined indefinitely,