Heath Miller has been lining up in the backfield "more than ever" this training camp.
The Steelers' have major concerns along their offensive line, meaning Miller will be asked to block plenty. On passing downs, it looks like they are planning on leaving him in as a protector. He's a poor bet to top last year's meager 42 catches for 512 yards.
Source: Pittsburgh Post-Gazette

Hines Ward (thumb) was activated off active/PUP list and will practice Monday.
Ward's thumb surgery was never a real concern. And as a 13-year veteran, he certainly doesn't need to take on more wear-and-tear by participating in camp. Still, the Steelers' interest in Jerricho Cotchery and the seemingly rapid healing of Emmanuel Sanders (foot) is bad news for Ward's fantasy value. His skills are deteriorating badly, as evidenced by last year's 47.1 yards per game.
Source: Scott Brown on Twitter

Emmanuel Sanders (foot surgery) is already out of his walking boot.
"It feels good," Sanders said. "It is just a progression." However, Sanders is still expected to miss roughly the next three weeks of action. That makes it very likely Antonio Brown will open the season as the Steelers' No. 3 receiver.
Source: Pittsburgh Tribune-Review

Steelers DE Aaron Smith has been taking a majority of the first-team reps ahead of Ziggy Hood at left end so far during training camp.
As expected. The 12-year veteran reportedly "appears to be close to full strength" after having his third season in four years cut short by injury in 2010. Hood played well in Smith's absence last season, but isn't yet a threat to Smith's job as long as he's healthy.
Source: Pittsburgh Tribune-Review