19 going on 35: How Konnor Griffin's maturity is making an impression on Pirates
Jesse RogersApr 17, 2026, 07:00 AM ET Close Jesse joined ESPN Chicago in September 2009 and covers MLB for ESPN.com. Multiple Authors When Konnor Griffin faced Mason Miller last week, the 19-year-old Pittsburgh Pirates rookie got a clear message that he wasn’t in the minor leagues or playing high school baseball in Mississippi anymore. The…
