The left side will most likely be Siegs/Smith/BahlRighty lefty considerations.
OK in for Graves though makes sense.
So if Marino is going to remain out, Walsh or Nemec would be the callups. I am actually intrigued with giving Nemec a few games. They gave him #5 in camp which usually means he's got a shot at making the team and he was a late cut. I think he is in line for a shot.