youngest member of the team at age 21. He began the season with Altoona and was promoted to the Indianapolis Indians in August. In 26 games (25 starts) between both clubs, Taillon compiled a 5–10 record and 3.73 ERA. Taillon underwent Tommy John surgery in April 2014 to repair damage to the ulnar collateral ligament of the elbow in his throwing arm, costing him the 2014 season. A hernia surgery caused him to miss the 2015 season. Pittsburgh Pirates (2016–2020) Taillon returned in 2016 with the Pirates, where he made 10 starts before earning his first major league call-up. Taillon went 4–2 with a 2.04 ERA, striking out 61 in 61.2 innings and walking only 6. On June 8, Taillon was recalled to make a spot start with the Pirates, who decided to push back Francisco Liriano's start one day after they played a doubleheader the day before. Facing off against fellow 2010 first rounder Noah Syndergaard in his debut, Taillon threw 6 innings, giving up 3 runs on 6 hits, 2 walks, and 3 strikeouts, not receiving a decision in the eventual 6–5 loss. After the game, Taillon was optioned back to Triple-A, but not without receiving compliments from his manager, Clint Hurdle, on his effort, saying, "This kid's poured into everything he's done. It's been a great fight back." However, his stay in Indianapolis was very brief, as an injury to Gerrit Cole necessitated a move to bring Taillon back into the rotation. On June 14, Taillon made his second start, also against the Mets, throwing 8 scoreless innings, carrying a no-hitter into the seventh before it was broken up by Curtis Granderson, and recording his first win in the 4–0 victory. In July, he was hit in the head by a batted ball. Taillon spent the remainder of 2016 with Pittsburgh. In 18 starts, he compiled a 5–4 record and a 3.38 ERA. Taillon was in the Pirates' starting rotation in 2017. He was placed on the disabled list in May as he underwent surgery for testicular cancer. Taillon made his first rehabilitation start three weeks later, giving up one run in three innings. He returned to the mound for the Pirates on June 12. In 25 starts during the 2017 season, he pitched to an 8–7 record and 4.44 ERA. In the 2018 season, Taillon spent the entire season on the roster without being injured, pitching