Unexpected Breakout Stars of 2023 in MLB

In the 2023 MLB season, several players emerged as unexpected breakout stars, surprising fans and experts alike with their outstanding performances. These players not only exceeded expectations but also proved their worth as valuable assets to their respective teams.

1. Kyle Bradish, Starting Pitcher, Baltimore Orioles:

Kyle Bradish, a below-average starter for the 2022 Baltimore Orioles, showcased his potential in the 2023 season. With improved strikeout and walk rates, as well as a significant reduction in home runs, Bradish established himself as the team’s ace. His impressive 2.83 ERA earned him a fourth-place finish in the AL Cy Young Award voting.

2. J.P. Crawford, Shortstop, Seattle Mariners:

J.P. Crawford, once a disappointing Phillies prospect, found a new lease on his career with the Seattle Mariners. Despite winning a Gold Glove Award in the shortened 2020 season, Crawford’s breakout performance in 2023 was truly remarkable. He led the American League in walks (94) and demonstrated significant power, hitting a career-high 19 home runs. His on-base percentage (.380) and slugging percentage (.438) increased by over 40 and 100 points, respectively. This impressive performance earned Crawford down-ballot AL MVP votes and recognition as a team leader.

3. Nolan Jones, Outfielder, Colorado Rockies:

Nolan Jones, a top-100 prospect, had a relatively underwhelming debut with the Cleveland Guardians in 2022. However, his trade to the Colorado Rockies in the offseason proved to be a game-changer. Jones began the season at Triple-A Albuquerque, where he hit an impressive .356 in 39 games before being called up in late May. He went on to become the best player on the team for the rest of the season, hitting 20 home runs and slashing .297/.389/.542. Jones, who will turn 26 in May, is a prime example of the type of player every team needs to find.

4. Ha-Seong Kim, Second Baseman, San Diego Padres:

Ha-Seong Kim, a versatile infielder for the San Diego Padres, established himself as a slick-fielding regular in 2022. In 2023, he became a steady contributor to an unsteady team, winning his first Gold Glove Award and improving his on-base percentage by 26 points to .351. Kim also excelled in the new rules implemented in 2023, leading the league in stolen bases with 38 (sixth in MLB). His impressive performance earned him down-ballot MVP votes, despite the Padres’ disappointing 82-80 finish.

5. Jordan Montgomery, Starting Pitcher, Texas Rangers:

Jordan Montgomery, traded from the New York Yankees to the St. Louis Cardinals in 2022, continued to impress in 2023. He played a significant role in helping the Cardinals reach the postseason and later became a valuable asset for the Texas Rangers after the 2023 Trade Deadline. Montgomery’s postseason performance was exceptional, with a 1.29 ERA in three ALCS appearances (two starts) against the Houston Astros. As a free-agent starting pitcher, Montgomery is now highly sought after.

6. Luis Robert Jr., Center Fielder, Chicago White Sox:

Luis Robert Jr., who debuted for the Chicago White Sox in 2020, finally had a healthy season in 2023. He showcased his true potential by hitting 38 home runs and stealing 20 bases, while also demonstrating strong defense. Health is a crucial skill, and Robert’s ability to stay on the field for an extended period will determine if he can be considered a true superstar.

7. Justin Steele, Starting Pitcher, Chicago Cubs:

Justin Steele, a soft-tossing left-handed pitcher for the Chicago Cubs, had a breakout season in 2023. Although he had a 3.18 ERA in 2022, he significantly improved in 2023 by cutting his walk rate nearly in half and benefiting from better defense behind him. Steele’s impressive performance earned him a fifth-place finish in the NL Cy Young voting.

8. Bryson Stott, Second Baseman, Philadelphia Phillies:

Bryson Stott, a promising player on the Philadelphia Phillies, had a standout season in 2023. Despite being surrounded by star players such as Bryce Harper, Trea Turner, Kyle Schwarber, J.T. Realmuto, and Nick Castellanos, Stott emerged as the team’s most valuable player in terms of WAR, according to both FanGraphs and Baseball Reference. His exceptional defense at second base and improvement at the plate made him a crucial player for the Phillies.

These unexpected breakout stars of the 2023 MLB season have proven their worth and have undoubtedly left a lasting impression on fans and experts alike. Their performances have not only contributed to their team’s success but have also highlighted their potential for future growth and success in the league.