Felipe Paulino was something that had gone right with the Royals -- a break that normal teams usually stumble onto every so often, but the Royals rarely do. The Royals didn't trade for Paulino; they bought him. They gave the Rockies a little cash and suddenly discovered they had a good starter worth including in their future plans.
But the good fortune of the Royals is carried in a bucket made out of wet sand:
Royals RHP Felipe Paulino diagnosed with torn ulnar collateral ligament in his right elbow.— MLB (@MLB) June 22, 2012
Paulino is going to get a second opinion, but this likely means Tommy John surgery, which puts him out until at least the middle of next season. Paulino had already missed over a month with a forearm strain, but in the seven starts he did make for the Royals, he was easily their most effective starter, posting a 1.67 ERA and striking out 39 in 37 innings.