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Martinez was promoted to Double-A Akron on Saturday, Guardians Baseball Insider reports.

The Guardians' farm system is stacked, particularly with middle infielders, and Martinez is one of the standouts. He hit .288/.384/.477 with 10 home runs, 10 steals and a 58:40 K:BB in 77 games at High-A and doesn't turn 21 until January.

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