Thunderbirds sign ex-Silver Ferns shooter Cathrine Tuivaiti

Former New Zealand international Cathrine Tuivaiti will join the Adelaide Thunderbirds for the next Super Netball season.

The 30-year-old goal shooter is leaving the Central Pulse in her native country to move to Adelaide.

"She is one of the most crafty and cunning players going around," Adelaide coach Dan Ryan said in a statement on Wednesday.

"I think she's going to be an absolute weapon for us in the goal circle.

"She's incredibly strong ... explosive and deceptive on the move and deadly accurate on the shot."

The Thunderbirds, who won just one game in the inaugural Super Netball season, have also signed Australian under 21 representative Sasha Glasgow to a full contract after she advanced from the training roster to a starting spot last season.