Delgado underwent a magnetic resonance imaging test on Wednesday after feeling a twinge in his right hip while swinging at a pitch during the eighth inning of New York's 11-7 win over the Reds on Tuesday. He left the game.
The Mets weren't planning to make any roster moves to shore up the position, Bernazard said. Shawn Green and recently acquired Jeff Conine both have experience playing first base. Conine went 0-for-4 Wednesday in his first start at first base for the Mets.
"We have flexibility," Bernazard said. "It's too early to discuss any other options."
Delgado is hitting .255 in 129 games and is third on the Mets with 22 home runs, behind Carlos Beltran's 27 and David Wright's 26. Delgado also is third with 80 RBIs, behind Wright's 91 and Beltran's 89. He hit .389 with four home runs and 10 RBIs in the first nine games of the Mets' just-completed road trip.
Mark Schmetzer is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.