Even though the sample size is small, the 2014 Major League Baseball season has been rough for a lot of pitchers who entered the year with lofty expectations.
In addition to the onslaught of Tommy John surgeries, several star hurlers have seen a steep drop in velocity. It's typical for pitchers to start the season slow in order to pace themselves for the six-month grind, but when you start seeing fastball velocities down more than one and two miles per hour, something is wrong.
Usually when you think of declining fastball velocity, it's associated with an older pitcher who has to reinvent himself in order to be effective. But the players on this list are, for the most part, still in their 20s and should be at or near their peak.
Here are the pitchers that every fan and fantasy owner should be worried about losing some giddy-up on their stuff.
Note: Stats courtesy of FanGraphs unless otherwise noted.