Red Sox executive Craig Breslow offered a blunt reaction after the club traded away former first round pick Marcelo Mayer. As part of their 2026 MLB Trade Deadline moves, the Boston Red Sox traded Marcelo Mayer to the San Francisco Giants in return for lefty reliever Erik Miller and Minor League outfielder Carlos Gutierrez. According to Red Sox executive Craig Breslow, it wasn't an easy decision to deal away their former first-round pick that had so much upside. “It was tough to include him in a deal,” he said via Chris Cotillo on X, formerly known as Twitter. Mayer has appeared in 114 career games at the MLB level and has hit seven home runs with 32 RBIs.