White Sox Place Dominic Leone On 60-Day Injured List With Right UCL Sprain

The White Sox announced that they have reinstated right-hander Matt Foster from the 60-day injured list. In a corresponding move, fellow righty Dominic Leone was placed directly onto the 60-day IL with a sprain of his right ulnar collateral ligament. Daryl Van Schouwen of the Chicago Sun-Times relayed on X prior to the official announcement that Foster would be activated and Leone would be going on the IL.

Foster, now 29, had a decent showing with the Sox from 2020 to 2022. In that time, he made 108 appearances for the Sox, allowing 4.39 earned runs per nine innings. He struck out 23.7% of batters faced and gave out walks at an 8.2% clip.

Unfortunately, he required Tommy John surgery in April of 2023, turning that into a totally lost season for him. He has been on the injured list since then and began a rehab assignment in June of this year. He has thrown 14 2/3 innings on the farm this year as part of that rehab with a 2.45 ERA, 30.8% strikeout rate and 7.7% walk rate.

Foster qualified for arbitration for the first time after the 2023 campaign. Though he was still rehabbing from his surgery, the Sox tendered him a contract. But due to his missed time, he was only able to get a raise to $750K, barely above this year’s $740K league minimum salary.

He’ll likely be looking at yet another modest raise in arbitration this winter, since he’s already missed most of the season. The Sox can get a look at him over the next few weeks and decide what role they want him to play on next year’s club.

As for Leone, it’s unclear exactly how serious this injury is, but it’s evidently enough to end his season. By going directly onto the 60-day IL, he can’t come back during the regular season. The Sox are trending towards one of the worst seasons in history, currently sporting a record of 29-93, so the playoffs obviously aren’t remotely a consideration.

The veteran signed a minor league deal with the Sox and cracked the Opening Day roster, but he’s spent most of the season on the IL. Lower back tightness put him there for a couple of weeks in May. Just a few days after returning from that issue, he went back to the IL with right elbow inflammation. That elbow issue put him out of action for more than two months and he only just returned in the first week of August.

Overall, he has tossed 19 innings on the year but won’t be able to add to that total. A UCL sprain doesn’t necessarily always lead to surgery, but even the non-surgical recovery path requires a lengthy layoff. If he does require some kind of UCL surgery, that will likely wipe out his 2025 season, given the year-plus recovery times with such significant operations. If he’s able to avoid the surgeon’s table, he will be looking to return for a 12th straight MLB season. He has 427 career appearances with a 3.94 ERA.