2019 MLB London Series Umpire Roster

Chief Dana DeMuth and his umpire crew of Angel Hernandez, Ed Hickox, and Carlos Torres will officiate the 2019 Major League Baseball London Series between the New York Yankees and Boston Red Sox, MLB's first foray into Europe. The four umpires last officiated Wednesday's Padres-Orioles series in Baltimore.

Hickox will be behind home plate Saturday, June 29, with Torres at first base, DeMuth at second, and Hernandez at third; this follows the crew's existing rotation carried over from Wednesday, when Hernandez had the plate.

MLB tabbed Adrian Johnson to serve as an on-site Replay Official for the UK-based series.

According to New Haven Register, London Stadium's roof that overhangs home plate has spurred the adoption of a ground rule specifying that balls caroming off the roof shall be treated as dead and foul. The left and right field foul lines measure 330 feet from plate to wall, with center field at a distance of 385 feet from home, with a 16-foot-high wall along the batter's eye.