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2021 South Side Sox Top Prospect No. 45: Johan Dominguez

To put it succinctly, this righty has been lights-out at every stop

Kim Contreras/South Side Sox

Johan Dominguez

Right-Handed Starting Pitcher
6´4´´
190 pounds
Age: 25
SSS rank among all right-handed starting pitchers in the system: 13
2020 SSHP Top Prospect Ranking: 48
2019 SSS Top Prospect Ranking: 89

Johan Dominguez has pitched exceptionally well since signing a minor league contract with the Milwaukee Brewers on May 8, 2016 as a 20-year-old.

Even though he pitched well for the Brewers DSL squad, with a 2.91 ERA combined over three years, it wasn’t until his third year that he finally earned a promotion to their AZL squad (June 24, 2018). Dominguez dominated the AZL in his 15 outings, posting a 0.00 ERA and 0.62 WHIP over 19 ⅓ innings of relief.

Shortly after yet another promotion, to the Brewers Pioneer League affiliate in Helena, he was traded along with outfielder Bryan Connell to the White Sox for southpaw reliever Xavier Cedeño at the August trade deadline. After the trade, Dominguez pitched two scoreless innings while striking out four, pitching for his fourth team in 2018.

In 2019, his first year pitching in a full-season league, Dominguez certainly held his own. While he had pitched almost exclusively out of the bullpen in his first three years of professional ball, he was used primarily as a starter in 2019. Because his career high in innings was 58 ⅓ prior to this year, Kannapolis limited his workload and even inserted him into the bullpen from time to time to keep him from doing any damage to his arm.

In 90 ⅔ innings for the Intimidators spanning 24 outings (15 starts), Dominguez posted a rock-solid 2.98 ERA and 1.28 WHIP by relinquishing 83 hits (.239 OBA) and 33 walks (8.5%) while fanning 90 (23.1%). He allowed just two homers, which is quite an impressive figure even when considering Dominguez was working in a pitcher’s ballpark.

In striking out basically a batter per inning, Dominguez has shown the stuff to put away hitters when he needs to. While his numbers were quite both good in both roles, Dominguez’s stats were slightly better as a reliever this year. Lefties hit .213 against his offerings in 2019 compared to .259 against righties, which seems to indicate Dominguez has an above-average changeup to help neutralize lefties.

Dominguez was about a year older than the average South Atlantic League player, so expect him to begin the 2021 campaign at Winston-Salem, with an eventual promotion to Birmingham (where he’ll be more age-appropriate) if all goes well.