The Nationals selected La Sorsa's contract from Triple-A Rochester on Saturday.
La Sorsa appeared in 25 games at the big-league level between the Rays and Nationals in 2023, but he had spent the entirety of the 2024 campaign with Rochester before being called up Saturday. Over his 56 innings in the minors this season, La Sorsa has posted a 2.25 ERA, 1.00 WHIP and 41:11 K:BB. He'll likely work in a low-leverage role out of the Washington bullpen.