"He's doing fine. He's doing everything that he's supposed to be doing, getting some work," manager Jim Leyland said. "He's probably not a Gold Glover just yet, but he's doing what he's supposed to be doing, and I think that's the best way to look at it.
"People sometimes read into it more than there is. It's a potential option. That's what this is. We have no idea how this is going to play out."
Peralta is eligible to join the active roster next Friday for the three-game series against the Marlins to end the regular season. Leyland said earlier this week that he anticipates Peralta being brought back for that, though he has left the postseason roster question open.
That said, Leyland repeated his phrase that he anticipates decisions on a potential playoff roster to be a "no-brainer."
Jason Beck is a reporter for MLB.com. Read Beck's Blog and follow him on Twitter @beckjason. This story was not subject to the approval of Major League Baseball or its clubs.