Josiah Gray, searching for the right pitch mix, adds a sweeper to his arsenal

Josiah Gray recently added a sweeper to his arsenal.(Bob Levey/Getty Images)HOUSTON - The last pitch of Nationals starter Josiah Gray's outing on Wednesday night wasn't perfect.But it was deceptive enough to get Martin Maldonado to check his swing and strike out to end the seventh inning.The pitch that helped Gray complete seven innings was a sweeper, a new addition his arsenal, which seems to be growing and developing.

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