Graduated from West Orange (Fla.) High School playing under head coach Jesse Marlo ... Played college baseball at Florida Atlantic University where he posted career totals of 3.27 ERA and 238 career strikeouts in 244.2 innings ... Was first-team All-Sun Belt Conference during his junior year with a league-leading 2.97 ERA ... Resides in Windermere, Florida.
Appeared in 29 games (11 starts) in his rookie season over three stints with St. Louis during his Major League debut season, going 6-2 with a 4.44 ERA (75.0 IP/ 37 ER) and 67 strikeouts...Was 13-5 over 22 starts and 41 appearances between St. Louis and Memphis (AAA)...Won 10 straight decisions from May 21-August 31 between Memphis and St. Louis...Was one of 11 different Cardinals and the lone lefty to make a start for St. Louis...Won all six of his decisions after the All-Star Break (T12th most among NL pitchers)...Led Major League Baseball with five wins in August, and also became the first Cardinals rookie left-hander to win five games in August (since 1913)...Became the first Cardinals left-hander to begin his career with a 5-0 record since Allen Watson started 6-0 in his rookie season of 1993...As a starter, was 5-2 with 4.26 ERA in his 11 starts (57.0 IP)...Pitched 6.0 innings or more in five outings (all quality starts)...Appeared in 18 games as a reliever, going 1-0 with a 5.00 ERA (18.0 IP) and 14 strikeouts...Stranded 4 of 8 inherited runners, and ranked T16th among NL rookies with 7 Holds. Retired his first batter faced in only eight of 18 outings...Had more success away from Busch Stadium, going 3-0 with a 3.98 ERA (43.0 IP/ 19 ER) and 39 strikeouts in 13 games (seven starts) on the road...Initially recalled on 4/29 at Pittsburgh, but did not appear in a game (optioned on 5/4)...Recalled on 5/31 (with RHP Mike Mayers and 1B Luke Voit) and made his MLB debut on 6/2 vs. Pittsburgh...Struck out Starling Marté (swinging) for his first MLB strikeout...Became the third Cardinals reliever and first left-hander to throw 3.0 hitless IP in his MLB debut (since 1908), joining Dick Hughes (3.0 IP; 9/11/66) & Ray Washburn (4.1 IP; 9/20/61). Also joined Ryan Sherriff (8/25/17 vs. TB) as the second Cardinal in last 20 years to toss at least 3.0 scoreless relief IP in his MLB debut...Appeared in a team-leading 14 games in June (T2nd in NL)...Also ranked 2nd among MLB rookie relievers with 7 Holds in June, 2nd among National League pitchers...Did not allow a hit to the first 14 right-handed batters he faced until 6/25 vs. Cleveland (Rajai Davis, 9th inning single)...Was the Cardinals most used reliever over a 15-game stretch (6/2-7/3), appearing in 15 games that ranked T4thmost in MLB over that period...Recalled on 7/24 and made his first career MLB start at Cincinnati that night…began start with 6.1 no-hit innings before Joey Votto singled in the 7th after the game was delayed by stadium fire alarms...He and Daniel Ponce de Leon (7/23 at CIN) became the first pair of rookie teammates to carry consecutive no-hitters into the 7th inning since 1964...Also joined Michael Wacha (6/3 vs. PIT) and Ponce de Leon as Cardinals to carry no-hitters 6.0 or more IP in 2018...Joined Daniel Ponce de Leon and Jack Flaherty as rookies to make three consecutive starts in a series at Cincinnati (July 23-25), marking the first time St. Louis started three rookies (Mike Busby, Matt Morris and Manny Aybar) since their final series of the 1997 season (Sept. 26-28 vs. Chicago), and the first time outside of expanded September rosters since August 8-9, 1959 vs. Philadelphia (Marshall Bridges, Ernie Broglio, Bob Gibson)...Earned first MLB win vs. Colorado (8/1) in relief, striking out two during a scoreless 6th...Threw 5.0 scoreless IP to gain his first win as a starter at Kansas City (8/10), combining with Chasen Shreve (1.0) and Daniel Ponce de Leon (3.0) on a 7-0 shutout...Stretched win streak to three games with 6.0 shutout innings in 4-2 win over Washington (8/15), matching his career-high with six strikeouts...Blanked the Dodgers over his first 4.0 innings (8/20), improving his scoreless inning streak to 15.0, but took ND in the Cardinals 5-3 win at Dodger Stadium that featured 9th inning home runs from Jedd Gyorko & Matt Carpenter...Improved to 4-0 with a 12-3 Cardinals win at Coors Field (8/26). He became the Cardinals first left-handed starter to win a game at Coors Field since Kent Mercker (1999)...Hurled quality start in a no-decision in 5-3 walk-off loss at Detroit (9/7). Joined Rick Ankiel (6/10/00) as the 2nd Cardinals rookie left-hander to start a game at Comerica Park, and the 5th Cardinals rookie to start a game in Detroit in the regular or postseason, joining Paul Dean (10/8/1934 - W.S. Game 6), José Jimenez (6/4/1999 at Tiger Stadium) and Anthony Reyes (10/21/2006 - W.S. Game 1)...Earned his sixth win at Atlanta (9/18), limiting the Braves to one run over 5.0 IP in St. Louis' 8-1 win...His lone run blemish was a Ronald Acuña solo homer in the 3rd inning...Hit safely in three straight games (8/26-9/13), 6th-longest hitting streak by a pitcher in 2018 (Max Scherzer, 6G)...Smashed a two-RBI double over the head of Billy Hamilton vs. CIN (8/31)...Recorded two RBI in back-to-back games (8/26 at COL and 8/31 vs. CIN), becoming the 21st Cardinals pitcher all-time with consecutive multi-RBI games and first since Adam Wainwright (4/27-5/2/16)...Ranked T12th among MLB pitchers with 4 RBI, while co-leading rookie pitchers with Pittsburgh's Nick Kingham...Was 7-3 with a 3.42 ERA (68.1 IP/ 26 ER) and 76 strikeouts in 12 games (11 starts) over three stints with the Memphis Redbirds (AAA)...Two-time Pacific Coast League Pitcher of the Week Winner: April 23-29 and May 21-27... Honored as the Cardinals Minor League Pitcher of the Month for April, going 2-0 with a 2.45 ERA (25.2 IP) over four starts...Matched Memphis single-game club record with 16 strikeouts at Iowa (4/23) during 8.0 scoreless innings of six-hit ball...His 16 strikeouts matched Lance Lynn (9/10/2010 at OKC) and were the most in a PCL regular season game since Sacramento's Dallas Braden fanned 17 (8/27/07 vs. CSP)...Optioned (7/6) and transitioned to a starting pitcher. Went 3-0 with a 2.70 ERA (13.1 IP) and 13 strikeouts in three starts...Rated as the Pacific Coast League's No. 19 prospect by Baseball America following the season.
Named Cardinals Minor League Pitcher of the Month for August posting a 5-0 record with an 0.91 ERA and 44 strikeouts in 39.2 innings, permitting only 18 hits ... Ranked among Cardinals minor league pitchers in wins (10, T5th), innings pitched (143, 5th), strikeouts (140, 2nd), games started (26, T2nd) and opponent BA (.219, 4th) ... Rated as a Cardinals MiLB.com organizational All-Star for the 3rd straight season ... MiLB.com Texas League Player of the Month for August ... Led the Texas League in lowest opponent BA (.219) and ranked among league leaders in ERA (3.34, 3rd), strikeouts (140, 2nd), WHIP (1.17, 3rd), strikeouts/9 IP (8.81) and fewest baserunners/9 IP (10.89) ... Over his final seven starts, won six straight starts (7/30- 8/26) and received a no decision in his final start in which he struck out a career-high 11 batters over 6.0 innings vs. Arkansas (8/31) ... Did not allow more than two runs in any of his final eight starts of the season ... Hit safely in 5-of-6 games with an at-bat, posting a .467 batting average (7-15, 2B, RBI), including two multi-hit games.
Began the season at Palm Beach (A), but made four starts for Springfield (AA) over the final two months of the season ... Named a Florida State League All-Star and made a relief appearance tossing a scoreless inning with a strikeout ... Led Cardinals minor leaguers in opponent batting average (.220) and ranked among the leaders in strikeouts (116, T6th) and earned run average (2.69, 3rd) ... Made four starts for Springfield and was 1-0 with a 1.40 ERA over 19.1 innings. Held the opposition to one earned run or less in all four starts ... Threw 7.0 scoreless innings of one-hit ball vs. NW Arkansas (7/30) in his lone win with Springfield ... Struck out a season-high 10 batters over 7.0 innings at Daytona (6/10) in a 3-0 loss at Jackie Robinson Ballpark ... Threw his lone complete game of the season (2nd career) vs. Brevard County (7/20), tossing a career-high 9.0 innings ... Made 15 starts of 7.0 innings pitched or more with 13 of them quality starts ... Made seven starts for Glendale in the Arizona Fall League and went 5-1 with a 2.14 ERA over 33.2 innings ... Led the AFL in wins (5), innings pitched (33.2) and strikeouts (33) and tied for the league lead in games started (7) ... Named Arizona Fall League Pitcher of the Week (11/1).
Named 2015 Cardinals co-Minor League Pitcher of the Year along with Alex Reyes ... Led the Midwest League in wins (15), strikeouts (140), opponent batting average (.196), WHIP (0.97), winning percentage (.833) and fewest baserunners/ 9 IP (8.80)... ranked in Top 10 in ERA (2.67, 6th) and strikeouts/9 IP (9.33, 2nd) ... Led Cardinals minor league pitchers in wins (15) and opponent BA (.196), and ranked among Cardinals minor league leaders in innings pitched (135, 6th), strikeouts (140, 2nd), games started (22, T8th), ERA (2.67, 8th) and WHIP (0.97, 7th) ... Named Cardinals Minor League Pitcher of the Month for August (4-0, 0.35 ERA, 4 GS, 25.2 IP, 32 K) ... Won 14 straight decisions from May through the end of the season, the only pitcher in Minor League Baseball to win 10 or more games (14-0) without a loss during that period. His 0.93 WHIP was the 6th-lowest in MiLB during that period ... Was the winning pitcher in his lone start in the Midwest League playoffs clinching the first round for Peoria, tossing 6.0 innings allowing one run on six hits with seven strikeouts in Game 2 at Kane County ... Posted two double-digit strikeout games with 10 in each: 7/11 at Clinton & 8/22 vs. Wisconsin ... Had 14 starts of 6.0 or more innings with a career-high 8.0 IP at Clinton (5/5); 13 were quality starts ... Named Midwest League Pitcher of the Week (5/4-11), throwing 8.0 scoreless innings of four-hit ball with no walks and seven strikeouts in a 2-1 win at Clinton (5/5) ... Selected to the Midwest League All-Star Team West Squad. Pitched a scoreless inning with a walk and two strikeouts ... Named to the Midwest League Post-Season All-Star Team.
Finished the regular season with a 14.0-inning scoreless streak on consecutive 7.0-inning starts, both against Williamsport (8/27 & 9/1) ... Had four scoreless starts during the season ... Made one post-season start and took the loss in 2.0 innings of work.