Twins Prospect Hot Sheet: Meet Justin Mitrovich, Minnesota's Latest Breakout Pitcher

As temperatures rise across the Midwest, several Twins prospects are heating up, too. From dominant pitching performances in Fort Myers to power surges in Wichita, these players are making compelling cases for promotions. This week, we have a pleasing variety of prospects to highlight, in terms of amateur and early professional background and in terms of future role.

RHP Justin Mitrovich– Fort Myers Mighty Mussels

How He Got Here: The Twins selected Mitrovich in the ninth round of the 2025 MLB Draft, after he had a successful collegiate career at Elon University. He spent all three seasons with the Phoenix and emerged as the club's Friday night starter during his junior campaign. Across 15 starts, he logged 89 1/3 innings with a 4.23 ERA while striking out 81 hitters.

Mitrovich entered professional baseball with one of the better changeups in his draft class. Minnesota opted to delay his professional debut until the start of the 2026 season—a decision that appears to be paying dividends, as he has quickly established himself as one of the most effective pitchers in the Florida State League.

Hitting the Hot Button: Mitrovich turned in another outstanding outing this week, tossing five shutout innings while striking out five hitters. He surrendered only two hits and two walks while throwing a season-high 71 pitches. After retiring 10 consecutive Flying Tigers hitters from the end of the first inning into the fourth, he lowered his season ERA to an eye-popping 0.87.

The numbers continue to jump off the page. Through six starts, Mitrovich has 27 strikeouts and eight walks across 27 2/3 innings. Opposing hitters have struggled to square him up all season. His average exit velocity allowed sits at just 85.5 mph, and he has yet to allow a barreled ball. With performances like these, it may not be long before he earns a chance to test himself at the next level. As a college draftee, he needs that challenge soon.

C/1B Andrew Cossetti– Wichita Wind Surge

How He Got Here: Cossetti was selected by Minnesota in the 11th round of the 2022 MLB Draft out of Saint Joseph's University. Since reaching Double A during the 2024 season, he has remained one of the more productive hitters in Wichita's lineup.

Last year, he appeared in 84 games for the Wind Surge and posted a .798 OPS with a 123 wRC+. He added 14 home runs and 15 doubles while continuing to show the offensive approach that has carried him through the system. Now 26 years old, Cossetti is one of the older regulars in the Texas League and knows that continued production is the quickest path toward Triple A.

Hitting the Hot Button: Few hitters in the organization enjoyed a better day than Cossetti this week. In one game, he drove in six runs and launched a pair of home runs, including a towering 452-foot grand slam. The performance marked his first multi-homer game of the season and extended his on-base streak to 20 consecutive games. His recent production has remained steady. Over the past week, Cossetti has hit .308 while posting a 1.077 OPS. Looking back over the last month, he owns an .871 OPS with four home runs and two doubles in 18 games.

Perhaps just as encouraging is the progress he has shown behind the plate. After throwing out only 13% of attempted base stealers last season, Cossetti has improved that figure to 22% while handling the majority of his defensive work at catcher. The combination of offense and defensive growth is strengthening his case for a promotion.

RHP Riley Quick– Fort Myers Mighty Mussels

How He Got Here: The Twins used the 36th overall selection in the 2025 MLB Draft to bring Quick into the organization. The Alabama product became one of the fastest-rising pitchers in his draft class after returning from Tommy John surgery and showcasing premium velocity and swing-and-miss stuff.

Minnesota assigned him to Fort Myers to begin his professional career, and it quickly became clear that Low-A hitters were overmatched. Across three starts, Quick fired eight scoreless innings while striking out 13 batters and allowing only one hit. That dominant stretch earned him a promotion to Cedar Rapids, where he is now facing older, more advanced competition.

Hitting the Hot Button: The transition to High-A has provided more challenges, but Quick continues to show why the Twins invested a first-round pick in him. The 22-year-old took the ball against Wisconsin on Friday and delivered four innings of one-run ball. He allowed just two hits, did not issue a walk, and struck out six hitters. Over his last two starts, Quick has worked eight innings with nine strikeouts and only two walks, while allowing three earned runs.

The results may not be quite as overwhelming as they were in Fort Myers, but that's part of the developmental process. The encouraging signs remain the same. His strikeout rate continues to be strong (37.5%), he is limiting contact (.186 BA), and he's proving capable of competing against more advanced hitters. If those trends continue, Quick could find himself moving quickly through the system.

Mitrovich has emerged as one of the biggest surprises in the system, Cossetti continues to make noise with his bat while improving defensively, and Quick is showing why many evaluators believed he had first-round talent.

As the calendar turns deeper into summer, promotions will become a major storyline throughout the organization. Based on their recent performances, these three players appear determined to force Minnesota's hand.

What stands out about this trio of prospects? Leave a comment and start the discussion.

Interested in learning more about the Minnesota Twins' top prospects? Check out our comprehensive top prospects list that includes up-to-date stats, articles and videos about every prospect, scouting reports, and more!