Rangers option reliever Mann to Round Rock

Mann leaves bases loaded in 5th ARLINGTON -- Rangers manager Jeff Banister did something on Thursday he has never done before when he told reliever Brandon Mann that he was being optioned to Triple-A Round Rock.

"First time I've ever sent out a pitcher who hasn't given up a run," Banister said.

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Mann was optioned to make room for right-hander Austin Bibens-Dirkx, who started the series opener against the Royals at Globe Life Park. Mann pitched in three games for the Rangers and did not allow a run. He gave up two hits, walked two and struck out one.

It was his first time in the Major Leagues after 15 years of pitching in the Minor, independent and Japanese Leagues. It's…