The 24-year-old Ely went 4-10 with a 5.49 ERA with the Dodgers last season.
Gimenez, who made his first major league start on April 2, has right knee inflammation. Gimenez, one of the team's two reserve catchers, made his first opening day roster this season and had appeared in four games.
The Dodgers originally were going to send down reserve C A.J. Ellis to Triple-A Albuquerque but changed course when they found out that Jimenez was hurt.