The New York Yankees designated right-hander Alexander Cornielle for assignment on Tuesday, four days after calling him up for his major league debut and hours before opening the American League Wild Card Series against the Boston Red Sox, via the MLB transaction log.
The move cleared a roster spot as the club reinstated designated hitter Giancarlo Stanton from the 60-day injured list. Cornielle, 25, had been a September placeholder more than a postseason candidate.
New York selected his contract from Triple-A Scranton/Wilkes-Barre on Sept. 25, signing him to a major league deal and adding him to the active roster before Game 2 of a doubleheader against the Baltimore Orioles.
Reliever Fernando Cruz was transferred to the 60-day injured list to open a 40-man spot.
Cornielle made that debut in the nightcap, a 6-3 Yankees win. The 6-foot-2, 180-pound Dominican right-hander worked the ninth and allowed two earned runs on three hits and a walk while striking out two.
The line produced an 18.00 ERA in one inning, enough to close a regular-season game the club was already protecting its playoff arms for, but not enough to keep him on a Wild Card roster.
His path to that inning was a long one. Milwaukee signed Cornielle out of Santo Domingo in 2019. He spent his entire professional career in the Brewers system until last winter, topping out at Triple-A before hitting minor league free agency. The Yankees signed him to a minor league contract on Dec. 17, 2025.
After an injury-interrupted start to 2026 that included time on the 60-day injured list, he returned and posted a 3.39 ERA in 21 minor league appearances, 20 of them starts, with more than a strikeout per inning.
That work made him a useful depth piece in the final weekend, when New York was already locked into the top AL wild-card spot and trying to avoid extra innings from pitchers it planned to use in October. Once the regular season ended, the calculus changed. Stanton’s bat is a known October variable. Cornielle’s one inning was not.
Designation for assignment does not end his Yankees story immediately.
The club has seven days to trade him, release him, or outright him to the minors if he clears waivers. For a pitcher with limited big league time and a solid minor league track record, another organization could take a look.
For New York, the decision was about October, not development.
The Yankees finished the regular season 93-68 and open the Wild Card Series at Yankee Stadium.
Cornielle’s brief stay was a reminder of how crowded those rosters get when the games start to count. One call-up, one inning, and then the roster turns over again.
