If you haven't been paying attention to the Cleveland Indians (I can't blame you), Ubaldo Jimenez's velocity has dropped like a rock - especially bad in 2013 so far. Here's the opening pitch from April 8th:

Yikes. Remember, this is the same guy who had no problem hitting 100 MPH in starts in Colorado whenever he felt like it - sitting 95-96 MPH.

I wrote about his mechanical problems on The Hardball Times in a series of articles dating back to last year when the issues started up.

• Ubaldo Jimenez and his missing 96 MPH heater: A mechanical look
• Ubaldo Jimenez: A quick mechanics review
• Ubaldo Jimenez: Perception vs. Reality

Very disconcerting. The Cleveland Indians reportedly told Ubaldo to not look at a radar gun and measure his results. That's exactly the opposite of a good process - using the radar gun as a consistent measuring tool is exactly how it should be used. Controlled experiments is how progress is made - make a tweak in mechanics/training, measure results over time. See if you get better or worse as you master the training or the mechanical pattern.

EDIT: Wrote a piece on the Indians or the beat writer for the Indians covering up Ubaldo's velocity drop on my personal blog.