Steelers running back Jaylen Samuels out a month after knee surgery

(Photo by Joe Sargent/Getty Images)

PITTSBURGH — The Pittsburgh Steelers have lost another playmaker to an injury.

Head coach Mike Tomlin announced Tuesday that Samuels, who has been a crucial playmaker on offense for the Steelers, is expected to miss a month after undergoing arthroscopic knee surgery.

Tomlin said Samuels aggravated the injury Sunday against Baltimore.

The Steelers (1-4) did not provide an update on injured quarterback Mason Rudolph, who was knocked out of the game after taking a brutal hit to the chin from safety Earl Thomas.

RELATED: Rudolph back at facility, working in protocol

According to Tomlin, Rudolph remains in concussion protocol, and he did not speculate on his status for Sunday night against San Diego.

You can watch the Steelers take on the San Diego Chargers right here on Channel 11 for Sunday Night Football starting at 8 p.m.