The 2013 Dominican Summer League begins play on Saturday, with both Pittsburgh Pirates affiliates in the league taking the field, one of them as the defending champions. The league has a 72 game schedule and runs through the end of August. While the Pirates have two different teams in the league, known as Pirates1 and Pirates2, the players they have in the Dominican Training Facility will often switch teams during the season, so the Opening Day rosters for each team could look drastically different during the year. There are also players in the facility that won't play during the season because they may be injured or not ready just yet for pro ball. There is also a chance some of these players could move to the Gulf Coast League once that league begins play. With that in mind, we will take...

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