Dan Altavilla

The White Sox have released right-handed reliever Dan Altavilla, per the transaction log at MiLB.com. He’d been on a minor league deal and pitching with their Triple-A affiliate in Charlotte.

Altavilla, 32, boasts a sharp 2.49 ERA in 21 2/3 frames with the Knights this season, including a recent run of 11 2/3 shutout innings. He’s fanned only 19.8% of his opponents against a bloated 11% walk rate, but it’s been a nice run of run-prevention for the journeyman righty, who’s averaging a hearty 96.1 mph on his four-seamer in Charlotte while yielding a lowly 24.6% hard-hit rate.

A veteran of seven major league seasons, Altavilla did his best work early in his career with the Mariners. From 2016-18, he pitched to a tidy 3.28 earned run average with a 25.3% strikeout rate and 10.7% walk rate over 79 2/3 frames. Persistent injuries have limited Altavilla’s time on the field, however. He’s managed only 40 total big league innings since that early run with Seattle.

Flexor strains in both 2018 and 2019 shortened two of Altavilla’s seasons with the Mariners. He struggled to a 5.52 ERA in the latter campaign and in 2020 was included alongside Austin Nola and Austin Adams in the lopsided trade that sent Andres Munoz, Ty France, Luis Torrens and Taylor Trammell from San Diego to Seattle. Altavilla then underwent Tommy John surgery in 2021, which wiped out nearly all of his 2021-22 seasons.

Altavilla made a brief big league return with the 2024 Royals, tossing 3 2/3 innings for Kansas City. He was tagged for six runs in that short look and subsequently designated for assignment. The former fifth-round pick spent the rest of the 2024 season with the Royals’ top minor league affiliate in Omaha, where he logged 41 innings with a 3.51 ERA, a league-average 22.2% strikeout rate and a heavy 12.9% walk rate. The rate stats were shaky, but the combined 44 2/3 frames between Triple-A and the majors were the most Altavilla had pitched in a season since 2019.

There’s no indication that Altavilla is dealing with any kind of injury in 2025. He pitched for the Knights just a few days prior to his release and tossed a scoreless inning. As was the case in 2024, Altavilla’s rate stats are a bit wobbly, but he’s throwing hard, limiting hard contact and keeping runs off the board. That should earn him a new opportunity before long.

The White Sox re-signed right-hander Dan Altavilla over the weekend, as reflected in his transactions tracker at MLB.com. The righty pitched an inning and two thirds for Triple-A Charlotte yesterday.

Altavilla, 32, signed a minor league deal with the Sox in the winter. He tossed 9 2/3 innings for them during the spring, allowing three earned while striking out 11 opponents, issuing four walks and hitting two batters. He didn’t break camp with the club and opted out of that deal but has now circled back to the Sox on a fresh contract.

The righty has some capable big league work on his track record, though it’s been a few years since he complied the bulk of it. From 2016 through 2020, he tossed 114 2/3 innings for the Mariners and Padres. He had an ERA of exactly 4.00 in that time, with a strong 26% strikeout rate but also a high walk rate of 12.3%.

But he has thrown only five big league innings since then. Tommy John surgery in the summer of 2021 wiped out most of that year and the subsequent season. In 2023, he was with the Red Sox on a minor league deal but his results weren’t strong and he didn’t get a call-up. He made it back to the show with the Royals last year but landed on the injured list with a right oblique strain after just five appearances. When he was healthy, he was bumped off the roster as opposed to being reinstated.

The Sox have a pretty inexperienced bullpen. Mike Clevinger is the only reliever on the active roster with more than five years of service time. He has spent most of his career as a starter and is only now making the move to full-time relief. Swingman Bryse Wilson is the only other guy with at least four years of service while only Penn Murfee is also over the one-year line.

It’s understandable why a rebuilding club like the Sox would want to try out young arms to see what happens but some of them will surely struggle or simply get hurt. In short, there should be opportunities available for Altavilla throughout the year if he can stay healthy and somewhat effective.

Photo courtesy of Jayne Kamin-Oncea, Imagn Images

Dan Altavilla exercised an out clause in his minor league deal with the White Sox, reports Jon Heyman of The New York Post. The right-hander was granted his release and is again a free agent.

Chicago gave Altavilla a non-roster invite to big league camp in December. He had a solid Spring Training, working 9 2/3 innings of three-run ball with 11 strikeouts. The White Sox nevertheless opted not to carry him on the big league roster, sending him back to the open market.

Altavilla made five appearances for the Royals last season. He gave up six runs across 3 2/3 frames before sustaining an oblique strain that knocked him out of action for two months. Kansas City waived him rather than reinstate him onto the MLB roster once he was healthy. That was Altavilla’s first major league work since he made two appearances for the Padres in 2021.

The 32-year-old spent most of last season with K.C.’s Triple-A club. He turned in a 3.51 ERA with a 22.2% strikeout rate and a 12.9% walk percentage across 41 innings. The Triple-A and Spring Training numbers should land him a minor league deal somewhere.

The White Sox announced Thursday that they’ve signed right-handed reliever Dan Altavilla to a minor league contract. The MAS+ Agency client will be in spring training as a non-roster invitee.

Altavilla, 32, has pitched in parts of seven big league seasons but frequently dealt with injuries that have limited his amount of time on the mound. Since making his MLB debut with the 2016 Mariners, Altavilla’s laundry list of injuries includes shoulder inflammation, a pair of UCL sprains (the latter resulting in Tommy John surgery), a forearm strain and a notable oblique strain that sent him to the 60-day injured list just this past season.

In his first three seasons from 2016-18, all coming with Seattle, Altavilla pitched a combined 79 2/3 innings with a 3.28 ERA, 25.3% strikeout rate and 10.7% walk rate. He’s managed just 40 big league innings since, working to a combined 6.53 earned run average along the way. It’s not as though Altavilla has been consistently healthy in the minors during that stretch, either; he’s totaled 84 1/3 minor league frames in that time, bringing him to a total 120 1/3 frames in a span of six years.

There’s little doubt that Altavilla is talented when his arm is right. Even with his recent injury-plagued seasons weighing down his career numbers, he carries a 4.36 ERA and 26% strikeout rate in the big leagues. He pitched just 3 2/3 MLB innings with Kansas City this past season but averaged a sizzling 96.8 mph on his heater. In 41 Triple-A innings for K.C., he logged a 3.51 ERA, albeit with a 22.2% strikeout rate and 12.9% walk rate — both pedestrian marks.

The rebuilding White Sox will have plenty of room for non-roster players to compete for bullpen jobs this coming spring. Right now, the only relievers with even a year of experience in the Chicago bullpen are Justin Anderson, Jared Shuster, Steven Wilson and Ron Marinaccio. If Altavilla cracks the roster, he could log some meaningful innings and will be controllable through the 2026 campaign, as he currently has only 4.153 years of MLB service.