The Pirates have signed reliever Kyle Waldrop to a minor-league contract. Waldrop, 27, appeared in 24 games for the Twins across 2011 and 2012. That Waldrop was unable to stick given Minnesota's horrible pitching says a lot of what you need to know about him, and ultimately, whatever else you might have going for you, you have to strike out someone. Waldrop struck out just 28 batters in 60.1 innings across three levels last year, which explains why he's not on a 40-man roster anymore. But what Waldrop does have going for him is a ridiculous 72.2% ground ball percentage in his brief big-league career, along with very strong ground ball percentages throughout the minors.