The number of young players to make their major league debuts this season is already quite high and we are only two months into the season.Between injuries and poor performances, teams are being forced into bringing up talented minor leaguers sooner and sooner each year. Two prospects who were both recently called up by their clubs are Joey Loperfido of the Houston Astros and Jordan Beck of the Colorado Rockies.What can these players do for fantasy managers? And which of them are "champs" or ...