Lookouts reliever Jake Wong has been called up to Triple A Louisville.
Wong had been with Chattanooga since arriving from Dayton on April 5.
The right handed pitcher was traded by the San Francisco Giants to Cincinnati last Dec. 13.
Two additions to the Lookouts are Kyle Glogoski and Manuel Cachutt.
Glogoski, a pitcher from Auckland, New Zealand, transferred from the Arizona League.
Cachutt, also a pitcher and a native of Venzuela, was brought up from Dayton.