As bad as the nine other pitchers on this list were in 2009, none were anything close to as bad as Daniel Cabrera.
Micah Owings' True ERA was 6.23. Cabrera's was a whopping 6.93, nearly a full run above that.
Cabrera's 23/42 K/BB ratio is borderline comical. He can't throw the ball over the plate. Period.
Without the plus velocity he once had, Cabrera is unable to strike many batters out, and his homer and liner rates aren't anything special.
That just leaves baseball's ugliest K/BB ratio, and it completely undoes everything for the former Oriole.
Barring some huge strides in the minors, I wouldn't expect to see Cabrera pitching more than a few big league innings ever again.
Here's hoping no GM is stupid enough to let him.