Jansen (pelvis) will make a rehab appearance for Triple-A Toledo on Tuesday, Evan Woodbery of MLive.com reports.
Jansen landed on the 15-day injured list May 28 due to right pelvic inflammation. He's progressed enough in his recovery to embark on a rehab assignment, and if all goes well during his appearance Tuesday, he could be reinstated from the IL as soon as Friday. Prior to being deactivated, Jansen posted a 4.80 ERA and 1.20 WHIP while notching seven saves in 11 attempts across 15 innings.