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Winckowski walked one and struck out one over two hitless and scoreless innings in Wednesday's spring start against Washington.

Winckowski, making his Grapefruit League debut, walked the first batter he faced then retired six in a row, submitting his first piece of evidence that he should be Boston's fifth starter. The right-hander is transitioning from the bullpen -- he excelled in relief last season -- so Winckowski needs to show he can sustain through longer outings. His main competition for the final rotation spot is Tanner Houck and Garrett Whitlock.

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