Third annual Mystery Ball on tap for Saturday

BALTIMORE -- The Rays Wives will host the third annual Mystery Ball to benefit All Children's Hospital on Saturday, when the Rays play the Yankees.

Wrapped baseballs autographed by Rays players and All-Stars from around the league will go on sale for $40 each at gates 1 and 5 when gates open. Because each baseball is wrapped, fans will not know whose autograph they received until after purchase. There will also be a silent auction of game-used and one-of-a-kind Rays items.

"It's probably the best collection of balls we've had because of the fact we played Interleague," said hitting coach Derek Shelton, whose wife, Ally, is leading the effort. "We've got [Yasiel] Puig in there and [Clayton] Kershaw. You've got Carl Crawford back in there. [Robinson] Cano's in there, Mariano [Rivera's] in there. I think the silent-auction items are the best that we've ever had, too."

Shelton has worked behind the scenes all season to get opposing players to sign baseballs.