Yankees manager Aaron Boone said Tuesday that Kahnle (biceps) is close to beginning a rehab assignment, Gary Phillips of the New York Daily News reports.
Kahnle will throw another bullpen session Thursday, which could be the last step before he reports to a minor-league affiliate. He's expected to require 4-to-6 rehab appearances before being activated, setting him up to return in late May or early June if all goes well.