The Philadelphia Phillies are not just adding another arm. By agreeing to a major-league contract with Nestor Cortes, they are bringing in a pitcher whose recent track record suggests both volatility and usefulness, which is often exactly the kind of profile that becomes valuable in late-season roster construction.
Robert Murray reported the agreement on Wednesday, as the Phillies prepared to begin the finale against the Miami Marlins. The move gives Philadelphia an experienced 31-year-old left-hander with eight years of big-league experience, and the current expectation is that he may be used in relief.
A veteran with a long and uneven path
Cortes has already gone through several baseball lives. The Yankees selected him in the 36th round of the 2013 MLB Draft out of Hialeah High School in Hialeah, Florida, and his career has since moved through the Baltimore Orioles, Seattle Mariners, Milwaukee Brewers and San Diego Padres as well as New York. That kind of itinerary can look like instability, but it can also point to a pitcher who has survived because he keeps finding ways to help.
That has certainly been true at times. In 2021, Cortes posted a 2.90 ERA in 93 innings across 22 appearances, including 14 starts, and then took another step in 2022 when he represented the Yankees in the All-Star Game and recorded a 2.44 ERA with 163 strikeouts over 158 1/3 innings. Those numbers showed why his best version has been more than a novelty act.
Why the Phillies are betting on the upside
The appeal is not hard to see. Philadelphia is buying experience, strike-throwing history and a pitcher who has shown he can work both as a starter and in relief. That flexibility matters, especially for a club that may want options rather than a single rigid role.
At the same time, the recent performance record explains why this is not a simple plug-and-play move. Cortes posted a 4.97 ERA over 63 1/3 innings in 2023 while missing much of the season because of a left rotator cuff strain, then followed with a 3.77 ERA and 162 strikeouts over 174 1/3 innings in 2024. His 2025 season was interrupted again, with just two starts for the Brewers because of a left elbow flexor strain.
That is the tension in the signing: the Phillies are getting a pitcher with a high-end past, but they are also taking on the uncertainty that comes with a recent injury history and a few seasons that have swung sharply in different directions.
What the numbers suggest
The broader profile is mixed but not empty. Cortes has logged stretches that were rough, including a 5.67 ERA over 66 2/3 innings in relief with the Yankees in 2019 and a 15.26 ERA in 7 2/3 innings for Seattle in 2020 before he elected free agency after being outrighted. But he also showed that the ceiling remains real, and teams do not usually chase a pitcher with this kind of history unless they think there is still a usable edge somewhere in the arsenal.
For Philadelphia, the key question is not whether Cortes can replicate his best full-season numbers immediately. It is whether he can give the club meaningful innings, likely in shorter bursts, and help stabilize a staff that can always use another experienced left-handed option. In that sense, the contract is less about headlines than about fit.
If Cortes finds even part of the form that once made him an All-Star, this could become one of those moves that looks ordinary in July and important by September. If not, the Phillies still added a pitcher with a long record of adapting, and sometimes that alone is worth the gamble.
