At the beginning of the Houston Astros' 2019 spring training, Michael Brantley couldn't believe what he was witnessing. Brantley is regarded as one of the purest professional hitters of his generation, a left fielder whose bat control and swing decisions had convinced the team to lavish $16 million a year on him in free agency. That day a 22-year-old left fielder/designated hitter named Yordan Álvarez, who had split the previous season between AA and AAA, was putting on a show in batting practice. After one round of swings, Brantley pulled Álvarez aside.
"I asked him his name, I asked him what position he played and I asked him why they signed me," Brantley said.