HOUSTON -- Over the winter, Jordan Montgomery spent his days at Tread Athletics, a performance lab about 10 miles outside of Charlotte, fine-tuning his pitching craft. While the coaches at Tread appreciated almost everything about Montgomery, from his size to his competitiveness to his willingness to learn, what they loved most of all was his curveball. They loved it so much that it earned a nickname:
The Death Ball.
To the naked eye, it looks like a perfectly OK curveball, and based on spin rate and break alone, it's nothing special. And it confounds hitters anyway.