MLB umpires just in Orioles spring training game proved not needed
O's game blog: The series opener against Tampa Bay - Blog
Orioles And Pirates Finish Spring Training Game With No Umpires
Jack Flaherty strikes out 8 in Orioles' loss to Astros
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No umps when Orioles and Pirates play unneeded bottom of 9th
MLB spring training: Orioles, Pirates play final half-inning without umpires after crew walks off
Dean Kremer tosses three scoreless for Orioles in final prep for World Baseball Classic - Camden Chat
Baltimore Orioles: MLB Storm Brewing
No umps when Orioles and Pirates play unneeded bottom of 9th
Baltimore Orioles: Projecting the starting outfield in 2019
Orioles, Pirates play a spring training inning without umpires