Following his MRI exam, Jonathan Broxton is headed for the disabled list, with Kenley Jansen making his trip to Chattanooga a mere layover on his way to New York to replace Broxton on the active roster.There were different ways to interpret the news that an MRI revealed Jonathan Broxton had, according to the Times, a bone spur but no structural damage. On the one hand, the pain caused by the bone spur could account for Broxton's awkward appearance Tuesday and even his rough-and-tumble 2011, but it wouldn't seem to add much to a physical explanation of why he's been so off his game since mid-2010 — unless it has been a recurring problem.We'll undoubtedly here more on this as the day progresses.