Over his last ten starts he is basically mimicking his 2010 performance with: Speed, # of pitches thrown,% of breaking stuff thrown. He hasn't had any real injury issues since coming back from Tommy John surgery, if he gave us 191.2 IP in 2010 without any arm issues, and hasn't hard any arm issues this year there isn't some reason to assume he will suddenly develop arm issues again. Of course the risk is still there as it is with every other pitcher, but I don't see him as some "high injury risk" just because he is throwing hard again like he did in 2010. Also I added an edit to my previous post which shows his velocity has kicked up about 3MPH from his last start before demotion to currently, obviously something was tweaked, I am not a pitching coach nor do I pretend to be an expert in mechanics, I would be interested to see someone do a thorough analysis on it to see what/if anything was changed. From my purely "eyes" only approach it seems apparent to me the staff found something, worked with Liriano and fixed it thus leading him to pitching more effectively.