If you watch sports enough, and complement this with reading, you can get a pretty good education on sports injuries. How many people knew what a meniscus was before Mauer tore his in 04? How many people knew what a UCL was before Liriano tore his in 06? It's not rocket science. As a tech writer and tech journalist, I have written stuff that is far more complicated than orthopedics (super computing, robotic motion control, etc.). I am no expert at any of these things, but I can understand it well enough to write about it. The one thing that we can't do is look at an MRI or other diagnostic image and say anything helpful. That takes trained diagnosticians. And it is rocket surgery. As good as diagnostic imagery is today, the difference between a bone bruise and a stress reaction or hairline fracture is a matter of reading shadows. Get five diagnosticians in a room with the same film and the odds of consensus are low. What we can do without a degree in medicine is read reports about how a team is managing an injured player and compare it to what other teams do. In this case, the facts are clear. According to published reports, Mastroianni told Gardy he couldn't play for a full day at the start of the season. So Gardy played him as a pinch runner and late-inning injury replacement. Even in limited duty, he would be sore after a two-inning assignment. He also told him that the leg was not improving, several times. At that point, it was time to look for a plan B--someone who can play for a whole game if needed. The Twins didn't do that. They kept him on the roster and mostly unavailable for 17 days before making the decision. When Mastro tried to play a whole game, he aggravated the injury. Now he will be out for at least an additional month. Woulda coulda shoulda. But if they had done things the way most teams do (DL him and let him rest the injury for 15 days), he'd be in a rehab assignment by now, and available for duty by May 1. None of what I just wrote requires a degree in medicine. It just takes a brain and a computer. All of us are qualified to offer such opinions on this board, imho.