Mariners Call Up Top Prospect Michael Arroyo for MLB Debut

The Seattle Mariners selected the contract of infielder-outfielder Michael Arroyo from Triple-A Tacoma on Sunday. The organization's No. 4 prospect is making his MLB debut, starting at second base and batting eighth against the Oakland Athletics. Arroyo, who will be the 35th Colombian-born player in MLB history, joins the major league roster as the Mariners look to provide an on-base spark to their lineup.