Was signed by the Detroit Tigers as a nondrafted free agent out of the Dominican Republic on Sept. 28, 2010...was signed by Tigers scouts Carlos Santana, Ramon Perez and Miguel Garcia... Is the younger brother of former Tigers prospect, RHP Brenny Paulino, who pitched in the minor leagues from 2010-14... Was added to the Astros 40-man roster on Nov. 20, 2015...is signed to a one-year contract that runs through 2018.
Spent a month in the Majors with the Astros in 2017, in what was his second-career campaign in the Major Leagues...went 2-0 with a 6.52 ERA (21ER/29IP) in six starts...struck out 34 batters and walked seven in his 29.0 innings of work...opened the season on the 10-day Disabled List with right arm inflammation...was activated from the DL and optioned to Triple A Fresno on May 12...saw his first action of the season with Triple A Fresno...made three starts before being recalled to the Major League club on May 30...made his first Major League appearance of the season on May 31 at MIN...gave up two runs on five hits in 4.0 innings...struck out eight batters and walked one...became the third starter in Astros history to strike out at least eight batters in an outing of 4.0 innings-or-less...joined LHP Erik Bedard (April 21, 2013 vs. CLE) and RHP J.R. Richard (July 27, 1973 at LAD)...earned his first career Major League win on June 17 after holding Boston to one run on three hits in 6.0 innings...struck out four with one walk...the 6.0 innings pitched marked a career-high...was suspended by Major League Baseball for 80 games on July 1...was activated from the restricted list on Oct. 1, and placed on the 60-day DL with a bone spur in his right elbow...went 0-1 with a 4.50 ERA (7ER/14IP) in his three starts at Triple A...limited opponents to a .208 batting average, while recording 13 strikeouts in 14.0 innings pitched... right-handed hitters went 4x27 off him for a .148 average in the minors.
Made his Major League debut with Houston, making one start while appearing in three total games... threw a career-high 97.0 combined innings between the Major and minor leagues...at 22 years, 215 days old, was the third-youngest AL pitcher to make a start behind Minnesota's RHP Jose Berrios (21 years, 336 days) and New York's RHP Luis Severino (22 years, 48 days)...was scoreless in both of his relief appearances (4.0IP), which included a 3.0-inning performance where he allowed just one baserunner on Sept. 30 at LAA...began the season at Double A Corpus Christi...was promoted to Triple A on Aug. 19...recalled to Houston on Sept. 6 for his first career stint in the Majors...made his Major League debut on Sept. 8 at CLE, allowing four runs in 3.0 innings in the start...went 5-4 with a 2.00 ERA (20ER/90IP), 19 walks and 106 strikeouts in 20 minor league outings (15 starts)...pitched in 14 games at Double A, three games at Triple A and three games in the Rookie Level Gulf Coast League on a minor league rehab assignment...was a Double A Texas League Midseason AllStar, as he put up a 5-2 record and a 1.83 ERA (13ER/64IP) with 72 strikeouts at the level.
Put together his busiest season as a professional, appearing in 13 games (12 starts) with Class A Short Season Tri-City, Class A Quad Cities and Class A Advanced Lancaster...pitched in 67.1 innings, eclipsing his previous high of 20.0 innings in 2013...owned a 2.81 ERA (21ER/67.1IP) with a 9.6 strikeouts per 9.0 innings ratio, fanning 72 batters...started two games to begin the season for short-season Tri-City and did not allow a run over 9.1 innings, before being promoted to Class A Quad Cities...was 3-2 with a 1.57 ERA in five starts with the River Bandits...struck out 32 in 28.2 innings...held Midwest League hitters to a .202 average while posting a 0.98 WHIP...was named the Midwest League Pitcher of the Week for the week of July 13, while with Quad Cities...he went 1-0 with a 0.00 ERA (0ER/6IP), eight strikeouts and no walks in his scoreless appearance on July 7 vs. Cedar Rapids...it marked a stretch of four straight games with at least six strikeouts, fanning 28 in 24.2 innings...was promoted to Lancaster on July 26 from Quad Cities...in his final two regular season outings (Aug. 7 vs. Rancho Cucamonga; Sept. 4 vs. High Desert), tied a career high with 7.0 innings in both starts...over the course of the two games, fanned 17 batters while walking only one...made his first postseason appearance on Sept. 10 at High Desert in Game 2 of the California League South Division Mini-Series...allowed three runs in 4.1 innings of work.
Did not play while recovering from Tommy John surgery.
Made four appearances with the GCL Tigers...went 2-1 with a 2.70 ERA (6ER/20IP) and 22 punchouts...made only four appearances (all starts) before injuring his elbow and being placed on the disabled list July 16, where he remained through the end of the season...was traded to the Astros following the season on Sept. 13, as the PTBNL in the Jose Veras trade.
Made three appearances with the GCL Tigers...allowed only one earned run in his 4.0 innings (3G/1GS)...began the season on the 7-day disabled list, and was transferred to the 60-day DL on June 29...was activated on Aug. 17, making all three of his appearances to close out the season.
Made his debut as a professional with the DSL Tigers...did not allow an earned run over 15.0 innings of work, pitching in eight games and starting seven...held batters to a .160 batting average, giving up only eight hits in 50 at-bats.