Torreyes was acquired June 12 from Toronto for cash, the same day Barney was designated for assignment after a brief stint with the Dodgers. This will be Torreyes' Major League debut.
Manager Don Mattingly said Torreyes was promoted because of the recent rash of injuries to Dodgers infielders, which has included Howie Kendrick (left hamstring), Jimmy Rollins (right index finger), Enrique Hernandez (left hamstring), Jose Peraza (left hamstring) and Alex Guerrero (left calf).
Kendrick will have full workouts on Monday and Tuesday, including simulated games. When he can run 100 percent with no lingering hamstring issue, he will be activated. Mattingly reiterated that a healthy Kendrick is his starting second baseman.
Rollins has been out with an index finger injury. He tried to hit and throw in Anaheim, and the discomfort worsened. A Friday MRI confirmed a sprain that requires rest.
Mattingly said Frias, who was in the clubhouse Sunday but not activated, will fly with the club to Los Angeles and might be activated. He's been on the disabled list since July 1 with right-lower back soreness.
Mattingly said Carl Crawford, who left Saturday night's game when his right hamstring tightened, reported improvement Sunday, and the club believes it was a cramp.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.