The NL West-leading Dodgers placed pitcher Hyun-Jin Ryu on the 15-day disabled list with a right hip strain on Friday.
The move is retroactive to Thursday. He will be replaced in the rotation by newly acquired right-hander Kevin Correia.
Ryu had an MRI earlier in the day that showed strained muscles, which help stabilize the hip and leg during his throwing motion.
The left-hander complained of right hip and buttock pain after leaving Wednesday's 3-2 loss at Atlanta. He is 13-6 with a 3.28 ERA in 23 starts.
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Ryu became the sixth player to go on the DL this month, joining infielder Hanley Ramirez (oblique), pitcher Josh Beckett (hip), pitcher Paul Maholm (ACL tear), and pitcher Chris Perez (ankle), pitcher Paco Rodriguez (strain).
The team recalled right-hander Pedro Baez from Triple-A Albuquerque. He will be making his fourth stint with the Dodgers and has pitched scoreless relief in his past three games.
He had a 3.86 ERA with 38 strikeouts and 13 walks in 40 combined games at Albuquerque and Double-A Chattanooga. Baez was optioned to Albuquerque on Monday and didn't appear in a game for the Isotopes.