If a team is lucky, a prospect will fly through the system at a ridiculous rate once every few years. We're not talking about a prospect taking a reasonable next step in their career, but going through multiple levels of the minor leagues in one season and skyrocketing up rankings. Sometimes it’s a prospect people expected to see jump; other times it seemingly comes out of nowhere.
The rare “prospect leap” is something fans of the Boston Red Sox have become spoiled with. In recent years, we’ve seen Roman Anthony, Kristian Campbell, Payton Tolle, Jhostynxon Garcia, and Franklin Arias all soar through the Sox's farm system.
Over that same three-year stretch, most teams don’t have a single prospect taking such a leap because making so much progress so fast is rare. Prospects can still have incredibly successful seasons without being the next Anthony.
Still, it’s fun to wonder who could take the leap. This year, the Red Sox have a lot of candidates. Not counting the dark horses that go from relative obscurity to star prospect status (like Garcia did), Boston’s hoard of pitchers in High-A has to be the most obvious names.
Kyson Witherspoon, Anthony Eyanson, and Marcus Phillips were all early-round draft picks in 2025 and have special stuff. Then there’s Juan Valera.
Valera is only 19 and made his affiliate debut in Single-A back in 2023. He cracked the MLB Pipeline top 100 prospect list in 2025 before an injury shelved him and knocked him off the list. On April 9, he made a start that reminded everyone who he is and how quickly he could potentially ascend.
Red Sox pitching prospect Juan Valera dazzles with blazing velocity in High-A start
When Valera took the mound for the Greenville Drive against the Hub City Spartanburgers on Thursday, people were likely expecting some fireworks. It’s hard to imagine they were expecting this, though.
The right-handed pitcher struck out the first batter he faced with a 95 MPH changeup. That’s not a typo. The changeup was 95 MPH. He struck out the next batter with a slider. The final out of the first inning came on Valera’s third strikeout, and he did so with a 102 MPH fastball. Again, that’s not a typo.
Valera hit triple-digits on his fastball multiple times throughout the game. He tossed five scoreless innings, allowing just two hits (both singles) and one walk. Meanwhile, Valera struck out nine batters, setting a new career-high.
The right-handed pitcher only needed 56 pitches to get through those five innings. He threw 39 strikes and generated 13 whiffs. That means 69.6% of his pitches were strikes, and 33.3% of those strikes were swing-and-miss.
Valera has always had the arm talent. He has a pitch mix that would make pitching coaches cry tears of joy. His April 9 start was a reminder to the world just how good he is and how he could be the system’s breakout star of 2026.
Don’t be shocked if the Red Sox take it easy with Valera, though. Following his injury issues last year (just 38 innings), they might not want to rush anything. Still, it’s not hard to imagine the front office seeing starts like this and thinking Valera’s wasting his time not working in Double-A.
Most prospects don’t take those crazy leaps into superstardom. However, it’s nice to see Valera show everyone he has the stuff to do it in 2026.