The Seattle Mariners' rebuild continued Monday with a deal in which they acquired J.P. Crawford, an out-of-favor prospect who is just a half-season into his major league career, and sent one of Seattle's best remaining players, Jean Segura, to a Philadelphia Phillies team that had a black hole at shortstop in 2018.
Segura's career has been remarkable. He bounced back from two years as a replacement-level player in Milwaukee, during which time his 9-month-old son passed away, to become a consistent star worth about 4 WAR per season for Arizona and Seattle over the past three years.