DETROIT -- The A's have spent much of the last six weeks dealing with injuries to their catchers, John Jaso and Derek Norris.
Jaso's late July concussion and Norris' mid-August fractured left big toe have created a playing opportunity for rookie Stephen Vogt and led to the trade that brought back veteran Kurt Suzuki.
Now the A's are on the verge of perhaps having a four-man catching corps as the rosters expand from 25 to 40 on Sunday. Norris likely will go out and test his toe in some injury rehab games this weekend and Jaso health has improved to the point where he's playing catch again and is about ready to start taking batting practice.
Norris isn't eligible to come off the DL until Sept. 5, and while Jaso is long since eligible, he'll probably return to the club somewhat after Norris once he can do a full range of baseball activities.
To make room on the roster, the club optioned reliever Evan Scribner to Triple-A Sacramento. He's expected to be called up to the A's again shortly after the rosters can be expanded to 40 players.
It's not clear how long Anderson will stay in the bullpen. Melvin said Thursday the left-hander ``is where he is.''
``We'll have to see what Bartolo (Colon) does,'' Melvin said, hinting that a starting job could still be in Anderson's future. He was, after all, Oakland's opening day starter this season before foot problems cost him four months on the disabled list.
``But (Anderson) gives us something in the bullpen that other guys don't.''
Specifically the lefty is good for plenty of innings while also being able to come in and face just a batter or three.
``I don't like September callups,'' Melvin said, adding that it makes for a different game and makes mapping out a strategy more difficult. ``You don't know the players (other teams call up) and you don't know how they are going to use them.''
But the fact that the A's will use roster expansion to get back two players from the disabled list (Jaso and Norris) is a mollifying factor.