Each year, some players outside their team’s preseason top 10 rankings make significant progress and climb the prospect ladder, and the Minnesota Twins are no exception. As the 2026 season approaches, several Twins prospects who currently rank below the organization’s top ten show promising potential to become breakout stars. This evaluation highlights key candidates who are poised to advance and grab attention in the upcoming season.
All scouting insights presented here are drawn from Baseball America’s 2026 Prospect Handbook, focusing on those outside the Twins’ preseason top ten. These players’ performances and tools suggest they could join the organization’s core group of emerging talents soon, making them important names to watch.
Players Just Outside the Spotlight
The Twins’ farm system features a mix of promising athletes developing new skills and overcoming challenges, each bringing unique attributes to their performance. Below are detailed analyses of three such prospects whose situations and skillsets make them intriguing candidates for breakout in 2026.
Michael Quick: A Talented Arm Shaping His Future
Michael Quick’s journey to professional baseball was unconventional, as he nearly pursued college football instead, following in his brother Pierce’s footsteps, who played at Alabama and Georgia Tech. Ultimately, Quick committed to baseball at Alabama, yet missed a full season recovering from Tommy John surgery and pitched only 87 innings across three years. The Twins selected him 36th overall in the 2025 draft, signing him for $2.69 million.
Standing 6-foot-6 and weighing 255 pounds, Quick offers a rare combination of size and athleticism on the mound. His pitching delivery features a low three-quarters arm slot with a crossfire motion. His fastball clocks between 96 and 98 mph, occasionally hitting 99 mph, though it often plays below its velocity. Quick splits usage between a sinker and four-seamer, which could be adjusted as he advances in professional ball.
Opinions vary on his best secondary pitch. He relies heavily on an 84-88 mph slider that remains inconsistent, while his changeup and cutter show promise. The changeup, in particular, has strong bat-missing potential due to deceptive arm speed and late fading action. Quick also incorporated a low-90s cutter in 2025 that he adapted well to. Improving his ability to throw strikes steadily will be crucial for his development moving forward.
Quick possesses midrotation starter potential, though that remains somewhat uncertain given his limited full-time pitching experience. He is expected to begin the 2026 season at a full-season affiliate and may even start at High-A Cedar Rapids if his pitch quality warrants it.
Scouting grades for Quick include: Fastball: 60, Slider: 50, Changeup: 55, Cutter: 55, Control: 45.
Rafael Castellanos: A Young Arm with Advanced Skills
Signed by the Twins in January 2025 for $247,500, Rafael Castellanos was one of the youngest players from his draft class, turning 17 more than a month into his professional debut. He quickly distinguished himself in the Dominican Summer League, striking out 36 batters and walking just nine over 29 innings, earning the seventh spot in the league’s Top 35 DSL Prospects list after his first season.
Castellanos stands at 5-foot-10 with a medium build, which limits his projection physically. However, his athleticism and quick arm action enable him to deliver a fastball that ranges from 92 to 94 mph, topping out at 96 mph, notable for its natural rise and lateral movement. He throws strikes consistently, enhancing his effectiveness.
His repertoire includes two secondary pitches with plus potential: a sweeping breaking ball and a changeup. The sweeper features more than 15 inches of horizontal break and generates an elite rate of missed bats in the DSL. While his changeup misses fewer swings, some scouts see it as having long-term upside. Castellanos also tested a slider and cutter, though only the cutter showed promise during his initial experiments.
He is set to move to stateside competition in 2026. Though his size may raise questions, his pitch feel and advanced skills for his age suggest he could adapt well to higher-level hitters. Despite some developmental uncertainty, Castellanos has early tools that could allow him to become a midrotation starter.
Scouting grades for Castellanos are: Fastball: 55, Changeup: 60, Cutter: 40, Sweeper: 60, Control: 45.
Ian Barr: A Junior College Pitcher with High Spin Rates
Ian Barr earned attention as one of the top junior college pitching prospects heading into the 2025 draft, following a dominant freshman season at SUNY Niagara. He was named Division III junior college pitcher of the year and committed to Tennessee before opting to enter the MLB Draft. Barr also impressed at the MLB Draft Combine, registering the second-highest spin rate on his curveball and slider among bullpen sessions. The Twins selected him in the fifth round and signed him with a bonus of $762,500, well over slot value.
Barr is still filling out his tall frame at 6-foot-6 and 195 pounds. His fastball sits between 92 and 94 mph and can reach 97 mph, with potential to add velocity as he matures physically. Control remains a work in progress and is currently inconsistent. What sets Barr apart is his exceptional ability to generate spin, throwing both a mid-to-high 80s slider and low-80s curveball with approximately 3,000 rpm each. These breaking balls are known for substantial movement and advanced feel, with the slider already projecting as a plus pitch and the curveball rated above average.
Barr did not throw a changeup during his amateur career but may consider adding one at the professional level. He is expected to start his pro career in 2026 with Low-A Fort Myers. While his development timeline may be gradual and his role as a starter is not guaranteed, his physical size combined with unusual spin talent makes him a compelling prospect that could rise in the rankings quickly with a strong debut campaign.
Scouting grades for Barr include: Fastball: 55, Curveball: 55, Slider: 60, Control: 40.
The Upcoming Impact and What Lies Ahead
The Twins’ 2026 crop of breakout candidates demonstrates both potential and unanswered questions, reflecting a mix of physical tools, developmental challenges, and diverse backgrounds. Michael Quick’s blend of size and pitch variety, Rafael Castellanos’ advanced feel at a young age, and Ian Barr’s exceptional spin abilities provide the organization with intriguing possibilities for bolstering its pitching depth in the near future.
As these prospects begin the new season within minor league affiliates such as Cedar Rapids and Fort Myers, the Twins’ ability to refine control and pitch consistency will be critical. Successfully developing these promising arms could significantly enhance Minnesota’s rotation options in years to come, potentially accelerating their paths toward the major leagues and delivering surprising contributions to the team’s success.
