Angello was placed on waivers Saturday, Chris Johnston of TSN reports.
Angello signed a two-year, two-way contract with the Predators on Saturday.
Angello was acquired by Nashville from St. Louis on Wednesday in exchange for future considerations.
Angello was put on waivers, according to Elliotte Friedman of Sportsnet.
Angello (concussion) was placed on non-roster injured reserve Tuesday, Jim Thomas of The St. Louis Post-Dispatch reports.
Angello is in the concussion protocol following his early exit from Saturday's game versus the Stars, Lou Korac of NHL.com reports.
Angello (undisclosed) sustained an injury in Saturday's preseason game versus the Stars.
Angello secured a one-year, two-way contract with St. Louis on Thursday.
Angello was reassigned to AHL Wilkes-Barre/Scranton on Monday, Seth Rorabaugh of TribLive.com reports.
Angello (illness) will be available against the Avalanche on Tuesday, Wes Crosby of NHL.com reports.