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As the 2026 MLB season concludes, the Philadelphia Phillies are turning their attention to offseason roster improvements after an early postseason exit. The club's front office is expected to explore upgrades, particularly in the bullpen, which was a weak spot throughout the year.
In a recent ranking of the top 40 MLB free agents by Jim Bowden of The Athletic (subscription required), right-handed reliever Jonathan Loaisiga landed at No. 42, placing him among the best available arms outside the top tier. Loaisiga, who spent the 2026 campaign with the Arizona Diamondbacks, has emerged as a compelling option for Philadelphia.
The Phillies' bullpen posted a 4.43 ERA in 2026, ranking 20th in the majors. The unit's struggles intensified late in the season, with a 5.79 ERA in September, which carried over into October. During the National League Wild Card Series against the Atlanta Braves, Philadelphia's relievers allowed seven earned runs over 12.2 innings, contributing to the team's first-round elimination.
Loaisiga, 32, is coming off one of his most productive seasons. He recorded a 2.42 ERA with 48 strikeouts in 67 appearances (67 innings), both career highs. His 1.03 WHIP, 172 ERA+, and 2.88 FIP underscore his effectiveness. Perhaps most importantly, he remained healthy throughout the year, a promising sign as he enters free agency.
Before joining the Diamondbacks, Loaisiga spent eight seasons with the New York Yankees from 2018 to 2025. He enjoyed several strong campaigns in pinstripes, including a 2021 season in which he posted a 2.17 ERA over 70.2 innings with a 9-4 record. Over his Yankees tenure, he accumulated a 4.2 WAR with a 3.54 ERA in 249.1 innings, striking out 232 batters. However, injuries limited his availability from 2023 to 2025, preventing him from finding consistent rhythm.
Bowden listed the Phillies and Diamondbacks as potential landing spots for Loaisiga this winter. His rebound season in Arizona demonstrates that he has returned to form after his injury-plagued years. For Philadelphia, adding a reliable arm like Loaisiga could be a key step toward securing a playoff berth earlier in the season and advancing deeper into the postseason.
Key Analysis
The Phillies' bullpen woes were a defining issue in 2026, and addressing them is a priority. Loaisiga's ability to stay healthy and deliver consistent results makes him an attractive target. His experience in high-pressure situations with the Yankees and his recent success with the Diamondbacks suggest he could handle the pressures of pitching in Philadelphia. While his injury history is a concern, his 2026 performance indicates he has moved past those issues. Signing Loaisiga would not only bolster the bullpen but also provide a veteran presence for a team aiming to contend in 2027.