When Cardinals third baseman Nolan Arenado picked up Cubs batter Nico Hoerner's ground ball along the third base line, St Louis was stunned when HP Umpire Phil Cuzzi ruled the play a fair ball. Article: https://www.closecallsports.com/2021/05/game-of-millimeters-cuzzis-cubs.html In this video analysis, we review the relevant rules for fair ball and fair territory, determining that for an infield ground ball fielded before first or third base, the ball need not touch the ground, but only be "on or over" fair territory, including the foul lines, and check in with available replay camera angles. This play ultimately suffers from a lack of definitive video evidence to conclusively (or clear and convincingly) prove whether or not the ball was fair when first touched by the fielder, due to parallax and other factors.