Lefthander Anthony Kay will be making his Spring Training debut with the Chicago White Sox as Tuesday’s starting pitcher as the South Siders face the 2025 AL West division champion Seattle Mariners. Kay was signed as a free agent by Chicago in early December, hoping to make a comeback in the majors after two years in the Japanese Nippon Professional Baseball League and an underwhelming career in MLB from 2019 to 2023.
Kay spent time with the New York Mets and the Toronto Blue Jays prior to finding
himself with the Chicago Cubs, where he fluctuated between the minors and the big league club and appeared in only six games. His small sample size with the North Siders wasn’t bad — a 1.50 ERA in six innings with nine strikeouts — but he wasn’t able to find his footing in MLB. Kay spent the last two years working hard in Japan to refine his mechanics, adding a sinker to his pitch mix to adapt to Japanese batters and expand his arsenal, as reported by CBS Sports.
In 2024, Kay was solid in 24 games, posting a 3.28 ERA across 26 games (148 1/3 IP), and brought that down to a 1.74 ERA in 155 innings last season (24 games). Not only did he improve his ERA, but he remained consistent in strikeouts year over year, putting up 129 and 130, respectively, and also brought his WHIP down from 1.294 to a much more efficient 0.981. Walks were an issue for Kay in his previous MLB stint, but he brought that down from a 10-13% walk rate to 6.8% in 2025 with the Yokohama Bay Stars.
Kay joins fellow NPB star Munetaka Murakami as teammates this season, and the shared NPB experience could be helpful for the two to transition into MLB together.
Mune isn’t in the lineup today to get a breather, but so far, he has been solid in his first 10 at-bats (4-for-10) with two doubles, and it’s only Spring Training, and it’s the first week, but fans are so far liking what they are seeing.
Curtis Mead will be leading off and taking over first base for Murakami, while Edgar Quero will hold down the two-spot and complete the battery with Kay. Lenyn Sosa will flex into the three-hole to see how his strong performance at the plate last year will transfer into this season, especially with fewer defensive holes for him to fill. Sam Antonacci will make his third appearance of the spring and has been excellent thus far in his small sample size, batting .500 while competing for a spot on the team before he heads to compete for Italy in the World Baseball Classic.
Here’s how the South Siders will round out the lineup:
George Kirby is supposed to make the start for the Mariners, his first in Spring Training this season. Kirby has a career MLB 3.58 ERA, all with Seattle since being drafted in 2019.
Here’s how The M’s will line ‘em up today:
Unfortunate that it’s not readily available in 2026, but today’s game is actually watchable! If you have MLB.TV, that is. You can tune into the Mariners TV or radio broadcast, or follow along on MLB Gameday at 2:10 p.m. CT.
