PITTSBURGH -- Running back Isaac Redman will start the Steelers' season opener but it's not as clear as to who will be the lead blocker for him.
Fullback Will Johnson is nursing a pulled hamstring, and coach Mike Tomlin said the team won't know until later this week if Johnson will be able to play Sunday against the Titans.
Johnson, who got hurt in the Steelers' preseason finale last Thursday night, was a partial participant in practice on Monday. He is likely to be limited again on Wednesday.
The Steelers are also monitoring rookie outside linebacker Jarvis Jones, who bruised his chest in the team's third preseason game. Jones practiced on Monday and should play against the Titans barring a setback.
“He's feeling good,” Tomlin said.
In other Steelers news:
Rookie running back Le'Veon Bell (foot) has already been ruled out for the Steelers' first game. The former Michigan State star could participate in individual drills this week in practice, Tomlin said.
Tight end Heath Miller took part in some individual drills Monday, his first day practicing since tearing multiple knee ligaments, including his ACL, last December. The Steelers will continue to monitor and bring along the 2012 team MVP.
Tight end Matt Spaeth remains out with a Lisfranc injury, and Tomlin said the seventh-year veteran is a candidate for the short-term injured reserve list. Spaeth, who is still on crutches, would not be eligible to start practicing until after the sixth week of the season if he is placed on the short-term IR but it would open up a spot on the Steelers' 53-man roster.