Janssen out at least two more weeks

CLEVELAND -- Blue Jays closer Casey Janssen is expected to miss at least two more weeks because of a strained lower back/abdominal muscle.

Janssen appeared to be turning a corner earlier this week when he was sent on a rehab assignment with Class A Advanced Dunedin. He pitched one inning on Tuesday, but the discomfort lingered and he has been temporarily shut down.

The veteran right-hander is scheduled to rejoin the Blue Jays in Toronto on Monday. He'll continue receiving treatment and will eventually transition to bullpen sessions before going on another rehab assignment.

"He'll have to start that all over again," Blue Jays manager John Gibbons said. "He didn't really have much of a Spring Training anyways. ... He hasn't thrown a lot in the last couple of months. I would hope not longer, but I would expect at least two weeks."

Janssen has yet to pitch this season after suffering the injury during an exhibition game in Montreal late in the spring. He previously missed approximately a month of Spring Training because of a sore right shoulder.

Right-hander Sergio Santos will continue to receive most of the save opportunities during Janssen's absence, while left-hander Brett Cecil also remains a possibility as well depending on matchups.