Nottingham have made scrum-half Sean Romans the third new signing at Meadow Lane in the space of two weeks.
The 26-year-old former Junior All-Black is awaiting final clearance on his visa application, but is expected to link up with the club later this month.
Director of rugby Glenn Delaney told BBC Radio Nottingham: "He can certainly play at the next level. Bringing a player of his calibre should be good.
"Sean's someone that will add to us both as a character and as a player."
Romans follows fellow New Zealander Brent Wilson and Samoan Felipo Levi to the club, and arrives with experience in Super 14 rugby in New Zealand with Highlanders. He has also played for Otago, and won two caps for the Junior All Blacks.
Delaney added: "There were a couple of other clubs that wanted him to go and play for them, but he's chosen to come here which we're very grateful for, and we can't wait to see him."
The club have also announced that scrum-half Tim Usasz will not be returning to Meadow Lane.
Usasz represented the United States at the World Cup but has not played for the club this season.