Jacob Waguespack

On May 26, 2019, Waguespack was called up by the Blue Jays. He made his major league debut the next day, pitching four innings of relief against the Tampa Bay Rays. Waguespack allowed three runs (two earned) and set a Blue Jays franchise record for the most strikeouts for a reliever in their debut with seven. On July 3, he earned his first major league win, throwing five innings and allowing three runs as the Blue Jays beat the Boston Red Sox 6–3. On August 22, in a start against the Los Angeles Dodgers, Waguespack threw seven scoreless innings, allowing only one hit and retiring the final fourteen batters he faced. In doing so, he became just the sixth pitcher in franchise history to record a start of at least seven innings with no runs and one hit allowed in his first ten career games. Waguespack appeared in sixteen games for the Blue Jays in 2019, thirteen of which were starts and three of which were extended relief outings. He posted a 4.38 ERA and struck out 63 batters in 78 innings.

Waguespack began the 2018 season with Reading, and was later promoted to the Triple-A Lehigh Valley IronPigs.

On July 31, he was traded to the Toronto Blue Jays for Aaron Loup. Waguespack was assigned to the Triple-A Buffalo Bisons for the remainder of the 2018 season, and finished the year with a combined 6–10 record, 4.80 ERA, and 112 strikeouts in 122 innings. The Blue Jays added him to their 40-man roster after the 2018 season.

Waguespack attended Dutchtown High School in Geismar, Louisiana. In his senior season, he pitched to an 8–2 win–loss record, 0.37 earned run average (ERA), and 87 strikeouts in 53​⁄3 innings. He was selected by the Pittsburgh Pirates in the 37th round of the 2012 Major League Baseball draft, but did not sign, and went to the University of Mississippi, where he played three seasons for the Ole Miss Rebels. Waguespack saw limited action in his first two seasons of college baseball, pitching as both a starter and reliever. In his third and final season with the Rebels, he made 25 relief appearances and posted a 3.33 ERA and 34 strikeouts in 46 innings pitched.

Undrafted after leaving Mississippi, Waguespack signed with the Philadelphia Phillies organization and was assigned to the Rookie-level Gulf Coast League Phillies. He finished the season with the Short Season-A Williamsport Crosscutters, and posted a combined 0–1 record, 2.00 ERA, and 32 strikeouts in 27 innings. Waguespack played the entire 2016 season with the Class-A Lakewood BlueClaws, and went 4–2 with a 3.52 ERA and 72 strikeouts in 43 relief appearances. He began the 2017 season as a reliever with the Advanced-A Clearwater Threshers, and was later converted into a starting pitcher. Waguespack was promoted to the Double-A Reading Fightin Phils in August, where he continued to pitch as a starter. In 105​⁄3 total innings, he pitched to a 9–7 record, 3.42 ERA, and 108 strikeouts.

Jacob Daniel Waguespack (born November 5, 1993) is an American professional baseball pitcher for the Toronto Blue Jays of Major League Baseball (MLB).