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BALTIMORE (AP) -- The Baltimore Orioles will bring 12 pitchers into their AL Division Series against the New York Yankees.

The 12-man staff includes starters Jason Hammel, Wei-Yin Chen, Miguel Gonzalez, Chris Tillman and Joe Saunders. But manager Buck Showalter says Saunders and Tillman will be available out of the bullpen for Game 1 on Sunday night because Hammel has a balky right knee and is making only his third start since mid-July.

Rookie Steve Johnson, opening-day starter Jake Arrieta and right-hander Zach Britton were not on the roster. But Showalter added, ''Every one of those guys has to have the mindset they're playing tomorrow.''

Utility players Steve Tolleson and Xavier Avery were omitted in favor of veterans Lew Ford and Endy Chavez.