The #Pirates minor-league affiliate, Greensboro Grasshoppers (High-A), just threw a combined PERFECT GAME on Independence Day! Khristian Curtis (#Pirates No. 24), Jake Shirk, and Michael Walsh faced the minimum while striking out 16 batters! An historic performance on an historic day. 🇺🇸 (📸/ gettyimages) (🎥/ MiLB) - - - #letsgobucs #pirates #pittsburgh #pittsburghpirates #baseball #sports #roster #trending #rumor #breaking #news