He has previously played in MLB for the Los Angeles Dodgers, Boston Red Sox, and St. Louis Cardinals.
[1] Robertson spent his first professional season with the rookie-level Arizona League Dodgers and Ogden Raptors.
[6] He began the 2023 season with Oklahoma City, making 24 appearances and logging a 2.13 ERA with 37 strikeouts and seven saves in 25+1⁄3 innings pitched.
[8] He made his major league debut against the Cincinnati Reds on June 7, pitching two scoreless innings with three strikeouts.
[10] On July 25, 2023, the Dodgers traded Robertson and Justin Hagenman to the Boston Red Sox for Kiké Hernández.