Oct 17, 2026 8:20 PM
Updated Oct 17, 2026 10:10 PM
Several White Sox prospects are making an impression in the Arizona Fall League, while others have struggled to find their footing.
The Arizona Fall League gives some of baseball's best prospects an opportunity to get extra reps against elite competition and continue their development.
For some, that means more at-bats during an extended season. For others, it's an opportunity to build up their innings on the mound or gain valuable defensive experience while transitioning to a new position.
It's also often an indicator of which prospects organizations view as potential contributors at the Major League level, while providing a chance to see how they stack up against some of the best young talent in baseball.
The Chicago White Sox have 10 prospects on the Glendale Desert Dogs' Arizona Fall League roster, alongside players from the Los Angeles Dodgers, Atlanta Braves, Pittsburgh Pirates and Miami Marlins organizations.
Now that we're halfway through October and turning our attention toward 2027, it's time to take a closer look at how each of these White Sox prospects is performing and whose stock is rising or falling.
White Sox Position Players in the Arizona Fall League
Caleb Bonemer, one of the top prospects in all of baseball, has been getting reps in the outfield to expedite his path to Chicago and create more opportunities for everyday at-bats. He's also continued to crush the baseball, batting .313 with two home runs, nine RBIs and a 1.045 OPS after launching another home run on Friday.
Bonemer's combination of offensive production and newfound defensive versatility makes him one of the biggest winners of the Arizona Fall League thus far.
Infielder Colby Shelton has had a much tougher time at the plate. Although he does have one home run, Shelton is batting just .154 with a .527 OPS. It's a disappointing start for a prospect looking to build momentum heading into the 2027 season.
Grant Magill, a defense-first catcher who spent most of the 2026 season with Double-A Birmingham, has held his own through four games. He's batting .286 with four RBIs and a .670 OPS.
The only other White Sox position player on the roster is infielder Anthony DePino, who hit 25 home runs in the minor leagues in 2026 and appeared in 93 games with Double-A Birmingham. However, DePino has yet to appear in a game for the Glendale Desert Dogs.
White Sox Pitching Prospects in the Arizona Fall League
On the pitching side, right-hander Mathias LaCombe is one of the more notable arms the White Sox have competing in the Arizona Fall League. He's made three appearances thus far, allowing four earned runs over four innings for a 9.00 ERA.
Another fast-rising prospect in the organization is right-handed pitcher Pierce George, a 13th-round pick by the White Sox in the 2024 MLB Draft who pitched at four different levels and reached Triple-A Charlotte in 2026.
George has made just one appearance in the Arizona Fall League, allowing one run while walking three batters over two-thirds of an inning. It's certainly not the start he was hoping for, although the sample size is far too small to draw any significant conclusions.
Three other White Sox relievers, however, have been used more frequently and have found success in the Arizona Fall League.
Right-hander Nick Altermatt, 27, has made four appearances and posted a 2.70 ERA. Fellow right-hander Jonathan Clark has recorded a 2.25 ERA across three appearances, while Garrett Wright has been particularly impressive, tossing 4.1 scoreless innings over three outings.
Wright's performance stands out as one of the most encouraging developments among Chicago's pitching prospects in Arizona, particularly considering the offensive talent participating in the league.
Right-handed pitcher Tommy Vail, a 27-year-old undrafted free agent, is the only White Sox pitching prospect on the roster who has yet to make an appearance in the Arizona Fall League.
Which White Sox Prospects Are Trending Up and Down?
Through the early stages of the Arizona Fall League, Bonemer has been the clear standout among Chicago's position players. His continued offensive production is encouraging enough, but the added experience in the outfield could prove even more valuable as the White Sox begin planning for 2027 and beyond.
On the pitching side, Wright, Clark and Altermatt have all delivered encouraging results, while LaCombe and George have struggled in limited opportunities.
Shelton has been the most disappointing position player thus far, although there's still plenty of time for him to turn things around.
It's important not to overreact to a handful of games in the Arizona Fall League. The primary objective is development, and the additional experience these prospects are gaining against quality competition could be valuable regardless of their statistics.
But for a White Sox organization looking to build on its surprising postseason appearance in 2026, the continued development of its farm system remains a significant part of the equation.
Bonemer is already showing why he could be part of the next wave of talent arriving in Chicago, and several other prospects are making the most of their opportunities this fall.
Comments
Powered by RoundtableBuilt on infrastructure designed for real-time media. Learn more at RTB.io.© Roundtable 2026. By using this site you agree to the Terms of Use and Privacy Policy


