Moyer will report to Triple-A Las Vegas, where he is expected to join the starting rotation. He is not on a guaranteed deal and has not received any firm commitments from the club about a potential role in Toronto, but he does provide organizational depth.
The 49-year-old Moyer began the season with Colorado and went 2-5 with a 5.70 ERA in 10 starts before he was designated for assignment. Moyer then joined the Orioles' organization, but he was granted his release after not being promoted to the Major Leagues.
Moyer made three starts for Baltimore's Triple-A affiliate. He allowed three runs in 16 innings while striking out 16 and not issuing a walk.
The native of Pennsylvania has spent parts of 25 seasons in the Majors and at one point was one of the best left-handed starters in the game. Those days are behind him, but Moyer will still be given an opportunity to prove he can be an asset.
Toronto's starting rotation has been devastated by injuries during the past two weeks. Right-handers Brandon Morrow, Kyle Drabek and Drew Hutchison were all placed on the 15-day disabled list, while Henderson Alvarez was forced to depart Monday night's game in Boston because of soreness in his right elbow.
The series of injuries have also caused a ripple effect throughout the club's Minor League system. With Brett Cecil, Jesse Chavez and Aaron Laffey all promoted to the big leagues and a series of arms added to the bullpen, there isn't much depth left in Las Vegas.