DETROIT (AP) -- Felix Hernandez is not ready to return to Seattle's starting rotation.
Hernandez, who has been bothered by an oblique strain, threw a bullpen session Monday in Detroit, but the Mariners say Hisashi Iwakuma will start against the Tigers on Wednesday night, followed by James Paxton on Thursday. Erasmo Ramirez is slated to start against the Los Angeles Angels on Friday.
Hernandez is expected to throw another bullpen session Thursday.
Pitching coach Carl Willis says Hernandez felt fine physically Monday but is a little erratic. He has not pitched since Sept. 2.