In December of 2017, the Red Sox traded for first baseman Eric Hosmer. They gave up four prospects in the deal: outfielder Bubba Starling, infielder Esteury Ruiz, right-handed pitcher Jorge Lopez, and left-handed pitcher Ryan O'Hearn. The Royals also sent $5 million to the Red Sox to help offset Hosmer's salary.
Hosmer is a two-time Gold Glove winner and was an All-Star in 2016. He's a career .276 hitter with 127 home runs and 566 RBIs. The 28-year-old should be a key piece of the Red Sox lineup for years to come.