Kiley McDaniel Apr 2, 2026, 02:15 PM ET Close ESPN MLB Insider Kiley McDaniel covers MLB prospects, the MLB Draft and more, including trades and free agency. Has worked for three MLB teams. Co-author of Author of 'Future Value' Konnor Griffin is headed to the majors! The Pittsburgh Pirates are calling up the top prospect in the sport ahead of Friday's home opener against the Baltimore Orioles . Still a teenager for another three weeks, the 19-year-old shortstop is expected to become MLB's first teenage position player since Juan Soto debuted in 2018. There has been plenty of hype surrounding Griffin this spring, but just how good is he? What should fans expect from him early on -- and in the years to come? And what does his debut mean for the Pirates? Let's dig in. How good is Griffin? Griffin is the best prospect baseball has seen in years.…