Heath Miller, not Mike Wallace or Antonio Brown, was the Pittsburgh Steelers' most valuable pass catcher last season. That's why Miller's recovery from ACL surgery looms so large over the Steelers' 2013 campaign. But the team's plan for Miller is starting to clear up. The Pittsburgh Post-Gazette wrote Tuesday that the team wants to bring the tight end off the active/PUP list before the start of the regular season, giving him time to work his way back into form. The Steelers are short at tight end with Miller's top backup, Matt Spaeth, out at least two months with a foot sprain, they might have to make some hard decisions at the position, but they aren't yet bringing in outside help. Source: NFL.com
I don't think he'll be playing by week 1 but I would guess they're hoping for a week 3-4 return or something along those lines by making this move. just my guess.
I tend to agree...I think they probably make this love because they think he'll be back before Week 7 (or whatever week the PUP is.). Regardless, I think it's a good move...