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Giants No. 11 prospect Keyner Martinez fans seven in five one-hit frames for Single-A San Jose
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Giants No. 11 prospect Keyner Martinez records nine punchouts in four innings for Single-A San Jose
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Giants prospect Keyner Martinez registers his fifth strikeout in a scoreless outing for Single-A San Jose
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Giants prospect Keyner Martinez notches his first strikeout for Single-A San Jose