According to the Associated Press, the Tigers did not have access to the new instant replay system early in Sunday's game due to a technical problem. Here are some more details:
Both managers were informed during the first inning. The technical problem was fixed after a little more than a half inning, Tigers manager Brad Ausmus said.
Crew chief Gary Cederstrom insisted he did not know how long Detroit's replay system was down, but said the Orioles were free to make use of their system while the Tigers' was not working.
"Everybody could do their challenges," Cederstrom said after Baltimore's 3-1 victory.
It sounds like the replay system in the Tigers' dugout/clubhouse -- the system the team's video crew uses to tell Ausmus whether he should challenge -- was not working but the main system to call back to New York was fine.
There was no obvious play in which replay could have been used while the system was down and there were no replays in the game at all, so no harm came from the technical difficulties.