A "bullpen day" is possible for the Rays on Sunday. That's one of the possibilities that can be guessed from what manager Joe Maddon gave reporters in Oakland.

It can only be a guess because Maddon apparently wants to keep it a secret.

As Marc Topkin wrote in THIS column for the Tampa Bay Times Friday, Maddon won't say if Roberto Hernandez will take his turn Sunday.

"Once we reveal it, you'll understand it, I promise," Maddon said.

Alex Cobb wil pitch Saturday. The Rays need to win both games to leave the weekend with the AL Wild Card lead.