La Sorsa was not present at spring training Tuesday due to an illness, C. Trent Rosecrans of The Athletic reports.
La Sorsa, who is in camp as a non-roster invitee, is due back in a few days. The left-hander appeared in 16 games for the Nationals in 2024, posting a 4.58 ERA and 1.25 WHIP while giving up four home runs in 17.2 innings.