Rivas was traded from the Athletics to the Cubs on Monday in exchange for Tony Kemp.

Rivas is primarily a first baseman but has also spent time in the outfield corners. In two professional seasons, which includes eight games at the Triple-A level but none at Double-A, he's hit .290/.390/.411. He's shown strong contact skills and the ability to take a walk, but he may not have enough power to be a significant big-league contributor.

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