In 2004, Mateo was signed as an amateur free agent by the Cincinnati Reds. Upon joining the Reds, Mateo joined their Rookie level minor league affiliate, the Gulf Coast League (GCL) Reds. In one season with the GCL Reds, he pitched in 13 games, had a 4–3 win–loss record, a 4.30 Earned Run Average (ERA), and a 1.46 WHIP. For the 2006 season, he joined the Billings Mustangs of the Pioneer League where in 18 games, he went 5–1 with a 4.30 ERA and a 1.40 WHIP. Mateo joined the Class-A Dayton Dragons in 2007 where he put together a 3.50 ERA, 63 strikeouts, and a 1.278 WHIP in 41 games.\n', '
On September 12, 2007, after Dayton\'s season was over, Mateo was traded to the Chicago Cubs as the player to be named later from the trade that saw Buck Coats be traded to the Reds on August 30.\n', '
To begin the 2008 season, Mateo joined the Cubs\' Class-A affiliate in Peoria. In eight games, he stru…
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Marcos Mateo
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