The peaks and valleys of the MLB season keep fans hooked throughout the summer. So far in 2013, David Price, Ichiro Suzuki and reputable players on every team have been disappointing, and naturally, we're eager to see them bounce back.
Unfortunately, some of the following liabilities never will. In an era when performance-enhancing drugs are less prevalent, players decline quicker and more dramatically than they did earlier this century. Even relatively young guys could be irreversibly weakened in the aftermath of major injuries.
Only players who have been active during the 2013 regular season were considered a top disappointment or "dishonorable mention" on this list. It goes without saying that the Atlanta Braves and New York Yankees miss Brandon Beachy and Derek Jeter, respectively.
*All stats courtesy of Baseball-Reference.com unless otherwise noted; accurate entering games of May 20, 2013.