Tanner Rainey is an American professional baseball pitcher currently in the Detroit Tigers organization, recognized for his high-velocity fastball and work as a late-inning reliever. Drafted by the Cincinnati Reds in the second round of the 2015 MLB draft, he debuted in the majors in 2018 before being traded to the Washington Nationals, where he became part of the 2019 World Series championship team. This news archive tag collects articles, injury updates, transaction reports, and performance analysis covering his stints with the Reds, Nationals, Pittsburgh Pirates, and Detroit Tigers, including his Tommy John surgery recovery and 2025 minor league and MLB appearances.