"He's been in the big leagues before," Yankees manager Joe Girardi said of Miller. "We're aware of what he can do and we felt that we needed a pitcher today with as much as we've had to use our bullpen, and the extra innings last night. He's the guy we turned to."
Miller, 32, was 4-2 with a 2.85 ERA and two saves in 26 appearances for Scranton/Wilkes-Barre, striking out 43 batters in 41 innings. He made one appearance with the Yankees last season and has seen big league time with the Orioles, Rockies and Athletics.
The Yankees also transferred left-hander CC Sabathia to the 60-day disabled list to create room for Miller on the 40-man roster.
Sabathia would thus be eligible to be activated on July 11, but the Yankees have said he will need to make at least two more Minor League starts, pushing his return to after the All-Star break.
Bryan Hoch is a reporter for MLB.com. Follow him on Twitter @bryanhoch and read his MLBlog, Bombers Beat. Jamal Collier is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.