Four Arizona baseball juniors are expected to hear their names called Sunday or early Monday during the 2025 MLB Draft.
At least two UA high school signees could be plucked by the pros, as well.
Below are scouting reports on those six players, with comments from Wildcats coach Chip Hale, shortstop Mason White (who’s one of the expected draftees), and :
UA JUNIORS
OF Brendan Summerhill
2025 stats: .343/.459/.556, 6 3B, 36-24 BB-K, 11 SB
Pre-draft ranks: Baseball America 22, MLB 16, 14, 24
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ÃÛÌÒÓ°ÏñAV outfielder Brendan Summerhill watches the ball sail into the outfield on his two-RBI triple in the sixth inning against New Mexico on Feb. 18, 2025, at Hi Corbett Field.
They said it: “What he did last year in Cape Cod put him in a spot where teams were coveting him in the first round, and he came out of the blocks (this) year doing the same thing. The injury to his hand set him back. ... When he first came back, he was ready to go. He was fine. When he hurt his hamstring at Texas Tech and then came back, he basically played on it at 80% the rest of the year. He wasn’t the same, and I think his hand, from all the swinging, it just wasn’t as strong as it’s supposed to be. ... (But) if people pass, they’re gonna be disappointed.†— Hale
“He is the sparkplug. He is the guy that will find a way to get on base. ... He’s gonna put it in play. He’s gonna walk. He’s gonna grind out a 10-pitch at-bat. He’s not gonna swing at a ball. He’s not gonna swing at a bad pitch. And if you give him a good pitch, he’s probably gonna hit off the wall.†— White
“Summerhill missed some time during his 2025 draft season with a fractured right hand, but when he was healthy he looked like perhaps the best college hitter in the class. ... He’s a selective hitter who knows when to pull the trigger, with a 90% in-zone contact rate and very little swing-and-miss to speak of against any pitch type — with sliders being the one exception.†— Baseball America

Arizona’s Aaron Walton, left, slides into home plate to score a run past Louisville’s Matt Klein during the first inning in Game 5 of the Men’s College World Series at Charles Schwab Field in Omaha, Neb., on June 15, 2025.
OF Aaron Walton
2025 stats: .320/.437/.589, 14 HR, 22 2B, 71 R, 19 SB
Pre-draft ranks: BA 154, MLB 161, ESPN 169, PG 140
They said it: “There’s teams that really value him highly that have called us. He’s gonna go a lot higher than people think. He is a guy that has so much potential physically, and no way do we go to Omaha without him coming here from Samford. Hitting, power, base stealing, defense — this guy’s got it all. Some scouts really realized how good he is. I think they’re trying to kinda hide out on when they’re gonna take them.†— Hale
“He will rob home runs, he will rob doubles in the gap and then he’s gonna go hit home runs, as well. ... He’s a big dude. He’s gonna play every single pitch at 100%. He’s not gonna take a pitch off. He cares more than anyone in the world.†— White
“A big, strong right-handed hitter, Walton has a bit of a linebacker-type build that’s a little Mike Trout-ish at 6-foot-3 and 219 pounds. When Walton arrived in Tucson in the fall, his hit tool was a bit behind the others, and he’s still power over pure bat, showing some swing-and-miss. But he made some adjustments heading into the spring and ... struck out less with the Wildcats than he did with Samford while drawing more walks.†— MLB
IF Mason White
2025 stats: .327/.412/.689, 20 HR, 17 2B, 8 3B, 63 R, 73 RBI
Pre-draft ranks: BA 161, MLB 143, ESPN 155, PG 185
They said it: “He played great for us down the stretch and into the playoffs to get us where we got. I think he’s a major-league player. ... It’s easier to project him at second (base), but he sure played a good shortstop for us. The only thing that he has to tighten up as he goes up the ladder is strikeouts. I think he can do that. It’s not an easy thing to do with players, but I think if he gets in the right organization he’ll have an opportunity to get enough at-bats to tighten that up. You don’t get power out of that position like he can give you.†— Hale
“A 5-foot-11, 185-pound lefthanded hitter, White is undersized ... but brings a strong combination of athleticism and bat speed. His setup at the plate is loud, featuring a pronounced leg kick and barrel tip, but his hand speed is exceptional and his hips fire with tight, efficient turns. He creates natural leverage and consistently drives the baseball, with above-average power potential.†— Baseball America

Arizona shortstop Mason White runs down a drive from Oklahoma State batter Ian Daugherty that went for an infield single in the ninth inning of their Big 12 game April 11, 2025, at Hi Corbett Field.
“White can pack quite a punch with his left-handed swing. He’s a very aggressive hitter with a big leg kick who has shown the ability to do damage. There’s plenty of raw power for him to tap into, and it’s shown up in college, particularly to his pull side. He has incredibly fast hands at the plate, giving those who like him confidence he’s going to be productive at the next level. Detractors worry about the strikeouts ... and the fact he hasn’t hit well over two summers with a wood bat in the Cape Cod League.†— MLB
C Adonys Guzman
2025 stats: .328/.411/.496, 9 HR, 27-32 BB-K, .987 FLD%
Pre-draft ranks: BA 314, ESPN 167, PG 267
They said it: “Adonys ... was probably our best hitter in Omaha. This is a guy who we knew could catch and throw. We weren’t worried about the offense, and he ended up being the fourth hitter on a World Series team. So he really improved a lot from his sophomore to his junior year. He was tired (late in the season), and he played through some pain and some issues and kept going. Whether he gets picked fourth, fifth, sixth round, someone’s gonna get a real gem.†— Hale

Arizona catcher Adonys Guzman, left, confronts Oklahoma State runner Donovan LaSalle after LaSalle made some contact scoring with no throw with the Cowboys’ first and only run of the night in the eighth inning April 12, 2025, at Hi Corbett Field.
“Like a Yadier Molina. He’s just a rock behind the plate. He’s gonna hit, he’s gonna shoot the ball the other way, he’s gonna take his walks and he’s just gonna compete at the plate. That’s what Donny does — just compete, compete and compete and just keep fighting. ... He’ll get fired up. He’ll talk and say stuff to other players, and that’s all good. He’s someone you want on your team and you probably don’t wanna play against.†— White
“Guzman was a top-200 (player) coming out of high school in the 2022 class thanks to his 80-grade throwing arm behind the dish. He went undrafted and made it to campus at Boston College but transferred to Arizona in 2024. ... Now listed at 5-foot-11, 220 pounds, Guzman remains a glove-first catcher whose swing is often a bit stiff and pull-oriented, though he does have solid pull-side power and the plate discipline you might expect of a catcher. His arm remains one of the best in class three years later with excellent carry on his throws that should help control the running game. He threw out 31% of base stealers in 2025.†— Baseball America
HS SIGNEES
RHP Cameron Millar
2025 stats: 7-1 W-L, 0.11 ERA, 0.64 WHIP, 16.5 K/9 (Alhambra HS, Martinez, California)
Pre-draft ranks: BA 121, MLB 138, ESPN 190, PG 114
They said it: “The 6-foot-2, 180-pounder was one of the bigger helium prospects in California this spring, catching scouts’ attention early with a big spike in velocity. After pitching in the 90- to 92-mph range during the 2024 summer, Millar more regularly sat in the mid-90s and touched 96 during his senior spring season. Millar looked a bit stronger and streamlined his delivery compared to the previous summer, helping him access more power across his entire arsenal. ... He just turned 18 in May, so he’s fairly young for the class and is committed to Arizona, but his talent fits in Rounds 2-5 if he’s signable.†— Baseball America
“Over the summer at events like the Area Code Games, Millar was throwing his fastball in the 92-mph range more often than not. This spring, he’s seen a big spike in his velocity, and he’s been up to 97 mph consistently every start, throwing his heater with 20 inches of inverted vertical break. ... Millar has shown some strike-throwing ability at times, but his arm isn’t always on time in his delivery, leading to an erratic release and inconsistent control. But the Arizona recruit went from being a kind of vanilla high school right-hander to one of the hottest prep arms in the West.†— MLB
RHP Jack Lafflam
2025 stats: N/A (Brophy College Prep, Phoenix)
Pre-draft ranks: BA 174, MLB 104, ESPN 192, PG 192
They said it: “Everything from Lafflam’s build to the way his stuff moves is atypical. He’s a tall, extremely slender pitcher along the lines of Guardians righthander Triston McKenzie and is listed at 6-foot-6, 180 pounds. He pitches across his body from an overhead windup and higher three-quarters slot with a loose arm that works well. Lafflam sits in the low-90s with a high-spin fastball that has regular cutting life. After topping out around 95 mph in the 2024 circuit, he pushed his max up to 97 mph during his senior spring season but typically settles into the low-90s deeper into starts. ... There are some questions about whether or not Lafflam will throw enough strikes to profile as a starter, but he could also learn to repeat his delivery more consistently if ... he adds more strength to his frame.†— Baseball America
“With a long, skinny 6-foot-6 frame, Lafflam gives off a Jack McDowell-like vibe. While his fastball typically sits at around 90-92 mph, he can dial it up to 95. It plays up because it has very good life to it, he throws it with good extension and his cross-fire delivery makes it hard to pick up, so it misses a fair amount of bats. ... Lafflam’s unorthodox delivery hasn’t always been in sync this spring, leading to some command issues, and he’s been getting more swings-and-misses from chasing his high-velocity stuff out of the zone. He’s had success in throwing strikes in the past, and teams that value analytics will likely appreciate his high spin rates, extension and how far down the mound he gets.†— MLB
Contact sports reporter/columnist Michael Lev at mlev@tucson.com. On X (Twitter): @michaeljlev. On Bluesky: @michaeljlev.bsky.social