Boxberger (abdomen) will throw an inning in an extended spring training game Thursday, Marc Topkin of the Tampa Bay Times reports.
The Rays checked up on Boxberger's health Tuesday, a day after he threw another live batting practice session, and it seems all test on his abdominal area were normal. If he makes it through a couple extended spring appearances unscathed, Boxberger should be cleared for a minor league rehab assignment. Manager Kevin Cash has already said that Boxberger will return to the closer role upon activation.