The Brewers added a pitcher with real upside in the fifth round of the 2026 MLB Draft, taking Aidan Knaak 163rd overall. On paper, he’s the kind of arm that can get overlooked if you only glance at the draft slot. Dig a little deeper, though, and there’s plenty to like about what Milwaukee just brought into the organization.
Knaak comes to the Brewers as a 6-foot-1, 215-pound right-hander out of Clemson, and his path has already included plenty of attention. He was a notable prep arm at Bishop Verot High School in Fort Myers, Florida, where he showed an ability to keep hitters guessing. He went undrafted because of his college commitment, then immediately made noise with the Tigers by earning All-ACC honors in each of his first two seasons.
This spring was a different story. Knaak’s numbers slipped, and he finished with a 5.81 ERA.
Even so, the industry still saw enough to keep him in the mix as a top-250 draft prospect, with MLB Pipeline ranking him No. 210.
His profile has long been built on deception and variety, with a mix that includes a fastball, curveball, slider and changeup.
The pitch that stands out most is the changeup. MLB Pipeline gave it a 60 grade on the 20-to-80 scale, and that’s the kind of offering that can change how a pitcher is viewed.
Knaak can shape it and vary its speed, getting it into the mid-80s or down into the 70s while still showing above-average arm-side run. With strong pitch tunneling, that gives the pitch a chance to play even better at the next level.
If he can keep the changeup in the 70s, it could make his low-90s fastball play up even more. That opens the door to different ways of attacking hitters. He could use the fastball to get into two-strike counts and then drop the changeup below the zone, or he could work backward and start at-bats with the offspeed pitch to set up the breaking stuff or the heater as the finish.
There’s also been some eye-catching reporting on the pitch itself. Via Driveline, Knaak has reportedly produced nearly two feet of horizontal break and a whiff rate in the 50s. That would qualify as elite at both the minor-league and major-league levels.
The Brewers will also have work to do. His fastball currently tops out at 96 miles per hour, which sits around average, and his average velocity is a few ticks lower. He may not need to add a ton of power, but if he’s going to profile as a future starter, he likely needs to raise the floor and the center of that velocity band.
His other offspeed pitches need attention too. Knaak’s slider and curveball are graded at 45 and 40, and college hitters did damage against those two pitches, posting a .476/.500/.714 slash line. The spin on those offerings needs a lot of work.
Even with the uneven spring, Knaak looks like a strong fit for Milwaukee’s pitching group. He doesn’t have to be a big velocity arm by today’s standards, and the organization has already seen success with starters working in that range. Quinn Priester averaged 93.9 mph in 2025, and Logan Henderson sat at 93.1 mph this year.
For Knaak, the path forward is pretty clear: build around the changeup that has been his best weapon for years, then sharpen the rest of the mix. If he can get ahead in counts and get more whiffs from the other pitches, he has a chance to develop into a rotation piece.
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