Primera was signed by the Red Sox out of Venezuela in September of 2024 and was sent to the Dominican Summer League in 2025 at the age of 18. The young catcher immediately dominated the league, as he slashed .333/.465/.430 with 10 doubles, one home run and 27 RBIs while being added to the All-Star Game as an injury replacement. Primera would go on to win the game’s MVP after hitting a home run in his lone at-bat.

Following his great season, the team had him play in the 2026 Spring Breakout game along with being on the roster for their annual Futures at Fenway South game. The team then decided he was ready for the FCL and had him open the season in Florida instead of spending more time in the DSL. Through his first 27 games this season, Primera has made that decision look smart, as he’s hit .464/.589/.821 with six doubles, eight home runs and 28 RBIs all while playing outstanding defense.

Measured at 6-foot-0, Primera still has some room to grow, especially in his upper body, but he should manage to stick behind the plate without worry about his size. He does, however, need to get stronger if he wants to improve various aspects of his game.

As a hitter, Primera has a compact swing that is short and allows him to find the barrel consistently. However, he does not see many pitches as he will look to attack early in the count, something that more advanced pitchers could take advantage of as he moves up the minor-league levels. He will need to work on developing how he attacks pitchers along with recognizing different pitches. He has pull-side power, but if he wants to really tap into it, he’ll have to add strength so that he can impact the ball with higher exit velocities. His speed is well below average, however, and should not be viewed as a part of his game.

Defensively, he is strong and should remain behind the dish barring a major injury. His ability to block baseballs in the dirt is great thanks to his ability to move well behind the plate. He also has plus receiving and framing skills despite being just 19 years old. His arm is also viewed as above average and should only increase as he improves his strength and conditioning.

Overall, there’s a lot to like about Primera, as his defensive upside alone should give him a quicker path to the majors than most backstops. His ceiling and floor will all be based on how his hit tool develops, and he could either be a serious catching prospect or nothing more than upper-minors depth. Despite that, the Red Sox have a fun prospect to keep an eye on for the next couple seasons as the organization tries to figure out what they have in their catching department.