Texas Rangers Upon signing, King underwent
Tommy John surgery on July 5, 2017. He rehabbed through the majority of the 2018 season, returning that September and appearing in one game for the
AZL Rangers of the
Rookie-level Arizona League and in three games for the
Spokane Indians of the
Low-A Northwest League. In innings for Texas in 2020, King went 1–0 with a 6.10 ERA and 9 strikeouts. Over 46 innings in 2021 for Texas, King posted a 7–5 record with a 3.52 ERA and 40 strikeouts. King was placed on the
IL in July, and underwent surgery for
Thoracic outlet syndrome in September 2021. King split the 2022 season between Texas and the
Round Rock Express of the
Triple-A Pacific Coast League. With Texas he posted a 1–4 record with a 4.03 ERA and 30 strikeouts over innings; with Round Rock he went 2–1 with a 7.27 ERA over innings. King was optioned to Triple-A Round Rock to begin the 2023 season.
St. Louis Cardinals On July 30, 2023, the Rangers traded King,
Tekoah Roby, and
Thomas Saggese to the
St. Louis Cardinals in exchange for
Jordan Montgomery and
Chris Stratton. In 20 appearances out of the
bullpen, he recorded a 1.45 ERA with 10 strikeouts across innings pitched. King was optioned to the Triple–A
Memphis Redbirds to begin the 2024 season. He made 56 relief appearances for St. Louis during the year, compiling a 3-3 record and 2.85 ERA with 38 strikeouts over 60 innings of work. King pitched in 51 games for the Cardinals in 2025, registering a 2-1 record and 4.66 ERA with 28 strikeouts across innings pitched. On November 21, 2025, King was non-tendered by the Cardinals and became a free agent.
Miami Marlins On February 12, 2026, King signed a one-year, $1.5 million contract with the
Miami Marlins. ==References==