After almost 9 nine months of recovery since having ACL surgery, Batch is not yet ready to participate in off season work outs with the team. Even though he feels great, he says in his tweets and blog, he's apparently not yet ready to put that knee through the rigors of an NFL workout just yet.
Ed Bouchette wrote about this today in his blog, and how this also could be a sign of Mendenhall's status for this season. (excerpt below)
Barron Batch will not practice with the rookies and some first-year players over the weekend, even though he is eligible to do so.
Batch isn’t yet ready to practice after having ACL surgery in the middle of August. So, nearly nine months later, he apparently has not been cleared to go.
It’s another reason to believe that Rashard Mendenhall might not play this season. He had surgery in mid-January. If he follows Batch’s schedule, he still won’t be ready to go in mid-October. He’ll open the season on PUP. After six weeks, he can practice for three weeks (or not, if he cannot). After those three weeks, the Steelers would have to decide whether to put him on the 53-man roster, or keep him on PUP for the rest of the season.
That means the Steelers will have the week before their Nov. 18 game against Baltimore to decide whether to activate Mendenhall or put him on the shelf for the season and, if that happens, likely never see him in a Steelers uniform again.
Everybody heals differently but 9 months is the normal minimum time for recovery and even that's not long enough the majority of the time.