Hiroki Kuroda
On September 1, 2014, Pompey was announced as one of the Blue Jays' September call-ups. He made his MLB debut against the Tampa Bay Rays on September 2 as a pinch-runner for Edwin Encarnación. After three additional appearances as a pinch-runner, Pompey had his first at-bat on September 10 against the Chicago Cubs and earned an RBI on a groundout to first base. On September 19, Pompey recorded his first Major League hit, a single to right-field against New York Yankees starting pitcher Hiroki Kuroda. Three days later he earned his first MLB multi-hit game and run in a 14–4 win over the Seattle Mariners. Pompey would hit his first career home run, a solo shot to right field, off Mariners ace Félix Hernández the following day. Playing against the Baltimore Orioles on September 26, Pompey had the best game of his young career, posting two runs scored and two RBI by hitting his first double and two triples, finishing the night 3–4. He became the third Blue Jays rookie to record two triples in one game, and first since Alex Ríos in 2005.