In this weekly column, well be featuring rookies who were recently called up or who had the most notable performances in the past week.At the start of this week, we highlighted some of the key rookie performances during the opening weekend, including the hot start of Luis Robert and the MLB debut of Brady Singer. You can find that article here.Generally, were going to avoid discussing the same players week after week. Otherwise, it might just end up being the Luis Robert and Nate Pearson ...