The Dodgers designated Vanasco for assignment Wednesday.
The Dodgers optioned Vanasco to Triple-A on July 14, and the 25-year-old righty will now lose his spot on the 40-man roster in order to make room for Nick Ahmed, who signed a major-league deal with the team on Wednesday. Vanasco owns a 3.47 ERA and 1.73 WHIP through 23.1 innings in Triple-A on the year, and it's possible he attracts some interest on waivers from teams in need of bullpen depth.