Lilly has been on the DL since March 28, recovering from the Sept. 21 surgery on his left labrum. He made two rehab starts for Class A Rancho Cucamonga and one for Albuquerque.
The southpaw last pitched on April 16 for Rancho Cucamonga at Lake Elsinore, surrendering four runs (three earned) on seven hits. He threw 81 pitches in five innings. His last big league outing came on May 23, 2012.
Injuries to Chad Billingsley (who needs Tommy John surgery), Zack Greinke (fractured collarbone) and Chris Capuano (strained calf) opened the door for Lilly.
Ken Gurnick is a reporter for MLB.com. Joey Nowak is a reporter for MLB.com. Follow him on Twitter at @joeynowak. This story was not subject to the approval of Major League Baseball or its clubs.