Remember Jacob Lindgren? You know, the Yankees' second-round draft pick in 2014? The guy with the 1.74 ERA and a gaudy 14.8 strikeouts per nine over 34 appearances in two minor league seasons? Well, he's healthy now and ready to earn a spot in the Yankees' vaunted bullpen. Lindgren underwent surgery last summer to remove a bone spur from his pitching elbow, the same surgery