Earlier in the week, Mets manager Willie Randolph said that he didn't believe the switch-hitting Hernandez would get a September call, despite his intriguing numbers this season in the minors.
Acquired from the Detroit Tigers in exchange for backup catcher Vance Wilson, Hernandez hit .326 in 66 games at Double-A Binghamton and .303 in 66 games at Triple-A, earning the organization's Sterling Award as the top player at Double-A.
"It was a good year," Hernandez told reporters. "This was my best year."
Still, Randolph was inclined to stick with Matsui, at least until the infielder came up with a hamstring pull on Friday night.
A corresponding 40-man roster move – the designation of pitcher Dae-Sung Koo – was made to activate Hernandez, who was already in New York to get his elbow checked out and to accept his Sterling Award on Sunday.