The White Sox announced that left-hander will be their 27th player for todays double-header against the Twins. He was already on the 40-man roster but will be making his major league debut as soon as he gets into a game. Eder, 25, was a fourth-round pick of the Marlins in 2020. He was quickly sent to Double-A in 2021 and made 15 strong starts there with a 1.77 earned run average, 34.5% strikeout rate, 9.4% walk rate and 50.3% ground ball rate. Unfortunately, he required Tommy John surgery in August of that year, which forced him to mi s the remainder of that season and all of 2022. He returned to the mound in 2023 but was then traded to the White Sox at that years deadline, going in a straight with going the other way. He seemed to struggle a bit with his control in his return to the mound. Between the two organizations, he to sed 56 2/3 innings last year with a 6.35 ERA. His 26.2% strikeout rate was still strong but he gave out walks to 13.5% of batters faced. The free pa ses continued to be an i sue in the Rodions Kurucs Jersey Arizona Fall League, as he walked 15 opponents in 17 2/3 innings there. Nonethele s, he remained a significant part of the future plans for the White Sox. He was added to the clubs 40-man roster in November to keep him out of the Rule 5 draft. Now further removed from his surgery, the control seems to be coming back to him. He has made 15 Double-A starts this year with a 9.3% walk rate and 25.9% strikeout rate. The 5.09 ERA isnt pretty but a .368 batting average on balls in play is po sibly inflating that, which is why his FIP is 3.82. Its po sible that this is just a one-day stint for Eder with the club needing an extra arm for the twin bill. James Fegan of Sox Machine suggests that Eder could be bumped to Triple-A after today, a level he has not yet pitched at. But it seems the Sox are fairly committed to having him make his major league debut before the day is done. Per Vinnie Duber of CHGO Sports , manager Pedro Grifol said theres a good chance hell call on Eder at some point. If I get the opportunity to put him in, Im putting him in there. Im not going to hesitate at all. I have confidence in him, we all do. Thats why hes here. Itll be nice to see him. Hes a big part of the future. The Sox have a fairly wide open rotation, with and perhaps slated to be traded elsewhere in the coming weeks while and are impending free agents. Eder is in the mix for future starting roles alongside guys like , , , , , and others, with deadline deals likely to add more names into that mix. How that plays out remains to be seen but Eder will seemingly get a little taste of the majors today. Nicolas Claxton Jersey