Welcome back RotoBallers; 20% of the MLB regular season is completed, and we are onto Week 8. Some of the top prospects are starting to get all called up and delivering for fantasy managers right off the bat. The Miami Marlins called up their top pitching prospect Eury Perez, who struck out seven over 4 1/3 innings in his MLB debut, while Seattle Mariners rookie right-hander Bryce Miller owns a 0.42 ERA over his first three big league starts. Since being recalled from Triple-A St. Paul, ...