Yankees trade for reliever Angel Chivilli from Rockies, designate Michael Siani.

The New York Yankees acquired 23-year-old right-handed reliever Angel Chivilli from the Colorado Rockies in exchange for minor league first baseman T.J. Rumfield. Chivilli, who posted a 7.06 ERA in 43 appearances for the Rockies in 2025, is seen as a high-upside, low-risk developmental project due to his 97 mph fastball, strong ground-ball rate, and remaining minor league options. To make room on the 40-man roster, the Yankees designated outfielder Michael Siani for assignment. Rumfield, 25, hit .285 with 16 home runs and 87 RBIs in 138 Triple-A games in 2025 and was drafted by the Phillies in 2021. The trade reflects the Yankees’ ongoing roster adjustments ahead of the 2026 season.