Not every moment in Salpointe Catholic baseball鈥檚 run to the Class 4A state championship game was a positive one for senior shortstop Aciel Guillen.
There was a stretch where Guillen struggled at the plate and entered a funk 鈥渇or about 10-14 days, so we pulled him out of the lineup,鈥 said Salpointe head coach Danny Preble.
鈥淲e stuck a freshman out there at shortstop and (Guillen) didn鈥檛 play,鈥 Preble said. 鈥淗e took a step back, figured out what was going on, made some adjustments and he鈥檚 been really hot since then.
鈥淔or a senior, a guy that has been starting for us for three years and has played in big games, to get benched during his senior year 鈥 furthermore, to get sat down for a freshman, he continued to be a great team guy and show up to practice and bust his butt every day and figure out where he was struggling. When he got his chance to get back into the lineup, he didn鈥檛 give it back up.鈥
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Guillen, who was named a first-team 4A All-Kino Region selection, has Salpointe鈥檚 top batting average (.467) this season with a minimum of 15 at-bats. Guillen also has the best slugging percentage (.750) and on-base percentage (.553) at Salpointe; both marks are Top 3 in the Kino Region.

Salpointe's shortstop Aciel Guillen maneuvers to glove a grounder by Ironwood Ridge's Wyatt Charnoki (2) in the fourth inning of their 4A state semifinal playoff game on May 14, 2025.
Guillen led the top-seeded Lancers to the 4A state title game against 14th-seeded Flagstaff on Monday night at Tempe Diablo Stadium. Salpointe was the only Tucson-area baseball team to make it to a state championship game this season.
Guillen鈥檚 first name was given to him by his grandmother. In the bible, Aciel is Hebrew for 鈥淕od created.鈥 Guillen, who has four siblings, has roots in Agua Prieta, Mexico near the border, where his dad grew up before emigrating to the U.S.
Guillen started playing baseball when he was just 3 years old, and 鈥淚 just fell in love with it,鈥 he said.
鈥淚 became good at it and decided to keep playing,鈥 said Guillen. 鈥淏aseball was a way to bond with my friends. Ever since I was little, that was all I knew.鈥
Guillen played a majority of his youth baseball games in Sunnyside Little League at Mission Manor Park. As a 12-year-old, Guillen was one of the top players on the Sunnyside Little League team that went to the Little League Western Regional Tournament in 2019 and nearly went to Williamsport, Pennsylvania for the Little League World Series, but fell to the Maui-based Hawaii team, 4-1, in San Bernardino, California.

Salpointe Catholic star shortstop Aciel Guillen played for the Sunnyside Little League team that went to the West Regional Finals of the Little League World Series in San Bernardino, California.
Playing games on ESPN 鈥渨as quite nerve-wracking and I wanted to look good,鈥 Guillen said.
Sunnyside won its semifinal game over Maidu (Northern California) at the Western Regional Tournament in walk-off fashion after Izaiah Moraga, who is also a senior at Salpointe and was named Kino Defensive Player of the Year, hit a game-tying home run before Michel Muniz Jr., who鈥檚 now at Sunnyside, slapped an RBI double to win the game and advance.
鈥淭hat was a pretty emotional experience for all of us,鈥 Guillen said of the walk-off win. 鈥淚t was an amazing game.鈥
On the cusp of going to the Little League World Series, 鈥渞eally opened up our eyes and showed us there鈥檚 some good competition around the country and around the world,鈥 especially pitching, said Guillen.
鈥淭here鈥檚 a lot of good pitchers out there and I struggled to hit in the tournament,鈥 he said.
After Guillen started his high school career, success from the past became irrelevant.

Salpointe's shortstop Aciel Guillen (9) slaps the tag on a Walden Grove's Andrew Romo (27) after he got hung up on a pick-off attempt in the first inning of their high school baseball game at Salpointe Catholic High School on April 8, 2023.
鈥淲e try to start with a clean slate,鈥 Preble said. 鈥淲e don鈥檛 care what you鈥檝e done. It sounds harsh, but any of those hits and strikeouts you got or those trophies you got before you get here, it doesn鈥檛 do anything for us. You have to show up and put it on the field for this team.鈥
The demand of greatness, regardless of past success, is why the Lancers have punched their ticket to seven straight state championships.
鈥淲e get a bunch of good kids that come into our program and they buy in,鈥 Preble said. 鈥淭he success and traditions that we鈥檝e had over the last 15-20 years in this program, it speaks for itself. We鈥檙e always in the mix and we鈥檙e always playing in May. I shouldn鈥檛 say it so arrogantly, because it鈥檚 a fortunate situation and there鈥檚 some luck involved, but we have really good players that buy into the process and it shows up in games. With that, it shows up in the postseason.鈥
It showed up in Salpointe鈥檚 8-5 win over rival Ironwood Ridge at Hi Corbett Field last week, when Guillen had one of the Lancers鈥 two inside-the-park home runs. With Salpointe trailing 2-0 and a runner on first base, Ironwood Ridge intentionally walked the previous batter, putting two runners on base. Guillen blasted the ball to left-center field and took the lead, 3-2.
鈥淚 wouldn鈥檛 say I took it offensively, but I wanted to do some damage there, because we had runners in scoring position and we were down in the game,鈥 Guillen said. 鈥淚 got a fastball and pieced it up pretty well. I knew immediately it was going far and I was getting extra bases from that. I knew the game wasn鈥檛 over and we had to keep going, but it was exciting getting the lead there.鈥
Throughout his time at Salpointe, Guillen said hitting and 鈥渢he mental side of the game鈥 have been the two most notable improvements in his game.
鈥淚 was pretty naive,鈥 Guillen said. 鈥淚 was around some really good players and coaches who helped me grow mentally. I changed mentally as a player and went through a lot, just facing hard competition and changing the way I think. The competition here improves you.鈥
Preble said Guillen 鈥渉as great skills and he鈥檚 got great hands, he can throw the ball very really well and he runs like a deer.鈥
鈥淲ith natural maturation, he鈥檚 gotten a lot stronger and can beat people at Hi Corbett,鈥 Preble said. 鈥淗is biggest improvement has been the mental side. There would be stretches where he would struggle as a freshman and sophomore, then he would go into the tank and his struggles would be amplified. Now, he learned from it.鈥

Salpointe鈥檚 shortstop Aciel Guillen makes the pivot but can鈥檛 complete the double play for a fielder鈥檚 choice in the second inning against Ironwood Ridge in the Class 4A state semifinals in 大象APPon May 14, 2025.
Guillen鈥檚 favorite moment at Salpointe isn鈥檛 a specific memory on the field, 鈥渂ut the people I鈥檝e been with, because they made it super fun and enjoyable.鈥
Guillen is graduating from Salpointe this month and will begin his college journey at Pima Community College, where he鈥檒l study mechanical engineering. The Aztecs are 211-82 (.720) since 2020 under head coach Ken Jacome. The toughest adjustment, according to Preble, will be the physically and mentally taxing season that has more games in comparison to the high school level.
鈥淎t the college level, you play 56 games no matter what on top of whatever you do in the fall,鈥 Preble said. 鈥淚 think we do a good job of preparing guys for the college grind. Until you鈥檝e gone through it, you can鈥檛 understand it. ... It鈥檚 a totally different grind and it鈥檚 not something he has ever done before.鈥
At the junior college level, Preble is 鈥渆xpecting better competition and I鈥檓 hoping to become a way better baseball player,鈥 he said.
鈥淚 hope to get a better future and get more out of this sport,鈥 he said. 鈥淚鈥檝e dedicated myself to this, just school and baseball.鈥
Fast Five with Aciel
Who is your all-time favorite baseball player?
A: 鈥淚 really like (Javier) Baez growing up. I first saw him with the Cubs. I saw him fielding and he had a few good plays when I saw him, he was hitting pretty good. I don鈥檛 keep up with players too much, but he was one I enjoyed to watch play.鈥
Do you have a favorite baseball team?
A: 鈥淚 don鈥檛 really have a favorite team. ... I keep up with the Diamondbacks. I want to see them win.鈥
What is your go-to postgame meal?
A: 鈥淚 always go chicken or me and the boys like to go out to McDonald鈥檚 after games or practices. We go there to celebrate a win or celebrate something. We get everything and like to try everything.鈥
Who is one pitcher you鈥檇 like to bat against?
A: 鈥淧robably (Jacob) deGrom.鈥
Do you have any pregame or in-game rituals?
A: 鈥淚 actually don鈥檛 like to be superstitious during the game. I鈥檓 not really a superstitious player, but I鈥檒l go out of my way to break habits and routines. It鈥檚 pretty rare for an athlete to not be superstitious, but I don鈥檛 like to be superstitious. I don鈥檛 really like to rely on all that.鈥