Replay system used in Jays game.

Major League Baseball launched its new replay era Monday, when Toronto Blue Jays manager John Gibbons unsuccessfully challenged a close play at first base in the sixth inning of his team's game with the Minnesota Twins.

First-base umpire Fieldin Culbreth signaled safe, and Gibbons immediately popped out of the dugout and informed Culbreth he wanted to challenge the call.

Before the game, Gibbons said he was curious about the system but not necessarily eager to be the first manager to challenge a call.