Boxberger (oblique) is scheduled to begin a rehab assignment Monday at High-A Charlotte, Roger Mooney of the Tampa Bay Times reports.
Boxberger looks to trending toward the latter end of the four-to-eight week recovery timetable he was handed down back in early June, but his recent activity has been encouraging. He was able to throw face hitters in batting practice prior to the All-Star break, and after enduring no further setbacks with his oblique, he'll be cleared to test himself out in game action. Given that Boxberger has made all of one appearance this season along with the fact that Alex Colome has been solid in a ninth-inning role, it doesn't seem likely that Boxberger will reclaim the closer gig for the Rays upon his eventual activation.