As I wait to see if Jayson Nix has made the Baltimore Orioles. I’ve been reading a lot about JJ Hardy and his injury. I kept seeing MRA and looked it up.
From the mayo clinic:

Magnetic resonance angiography (MRA)  The MRA scan is a special kind of diagnostic procedure. It uses magnets and computers to create images or “pictures” of the blood vessels in certain areas of the body. 
While similar to an MRI it is not the same.

Through this test they have been able to determine that Hardy has subscapularis strain. Minimum 10 days no baseball activities. I got that from Roch Kubatko at MASN.

So it looks like the O’s might need Jayson. I will keep waiting to see if I’m going to be the biggest O’s fan…