The Boston Red Sox have successfully signed star infielder Alex Bregman to a three-year, $120 million deal featuring opt-out options. Bregman, previously a Houston Astros player, is expected to play second base. This move reflects the Red Sox's efforts to revamp their roster after disappointing seasons. Meanwhile, the St. Louis Cardinals are learning that their attempts to trade Nolan Arenado may falter, as he remains with the team amid uncertainty. Cardinals' president Mozeliak acknowledges the chances of Arenado staying have increased, complicating their offseason plans and signaling a potential shift in the team's dynamic.