(ranks out of 47 rookies)
Analysis: Willi Castro isn’t as highly regarded as Isaac Paredes, but he is still generally considered one of Detroit’s top 15 prospects. After a great first game in which he went 3-for-4 with a homer, Castro hit the skids for about a week, and at one point he struck out in 8 consecutive plate appearances. He has seemingly turned things back around, though, and in his last 9 games he’s hitting .382. His defense has been an adventure, with at least three egregious throws, and his miniscule walk rate and sky-high BABIP suggest he’s due for a pretty severe regression. Still, what’s done is done, and he’s been very helpful.