Sunday marks Murphy's first career callup to the Majors. The 22-year old hit .269 with 12 home runs and 46 RBIs between Scranton and Double-A Trenton this season.
"Offensively, it's an up-and-down grind," Murphy said. "Defensively, I've made a lot of improvements. I think consistency is the biggest thing, obviously, at this level. That's what separates guys from this level to the Minor Leagues."
Murphy found out he was getting called up after the RailRiders' game against Lehigh Valley on Saturday. The catcher and the other callups were dropped off back in Scranton on the team's way up to Rochester, N.Y., and they left for Yankee Stadium at around 7:30 a.m. ET.
Murphy's said his parents took a 6 a.m. flight from Florida and will be at Sunday's game.
Adams will provide the Yankees infield depth behind Alex Rodriguez at third base and Robinson Cano at second. Murphy will be the team's third catcher behind Chris Stewart and Austin Romine.
"Just contribute any way they can, is the bottom line," manager Joe Girardi said. "One at-bat, you play one inning; any way you can help us out, that's all we're asking them to do."
Josh Vitale is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.