For a time, it appeared as though Ginter - a member of the Mets' so-called "Camouflage Row" of pitchers who intently hunt and fish in their spare time - might have been the likely choice to replace the injured Steve Trachsel in the Mets' rotation, but the club then traded catcher Jason Phillips to the Los Angeles Dodgers for left-hander Kazuhisa Ishii.
Ginter was out of minor league options, meaning that the Mets likely would have lost him if they had tried to send him to Triple-A Norfolk.
Colyer, a 26-year-old left-handed reliever, was 0-2 with a 6.75 ERA in 11 games this spring for the Tigers, and was optioned to Triple-A Toledo after Friday's game.
He was 1-0 with a 6.47 ERA in 41 games last season with Detroit, and also pitched in 25 games at Toledo, going 2-1 with a 4.21 ERA there. He will begin the season at Triple-A Norfolk.