Zack Greinke threw for all of 10 minutes in his first bullpen of spring training, and those pitches provided plenty of positive vibes for everybody involved with Arizona watching the ace. After an extensive warmup and stretching routine and some long toss in the outfield, the Diamondbacks' new $206.5 million man tossed to catcher Welington Castillo on Friday under cloudy skies that provided cool, comfortable workout conditions. ''Very nice,'' Castillo said on several pitches. More...