Soane Tonga'uiha has reversed an earlier decision to join Saracens and instead has agreed a new deal with Northampton
Tongan international front-row forward Tonga'uiha had announced in January he would be leaving the Saints to join the Watford-based club.
However, he has now agreed a new three-year contract to remain at Franklin's Gardens, stating: "I'm very happy to sign again with Saints."
He continued: "The success of the club over the last few months has been a big thing to be a part of and very enjoyable.
"The coaches and the fitness department have worked hard and this played a massive part in me deciding to stay. We're also very settled in the area as a family, which means a lot to me as well.
"We're a team that plays for each other and we stick together on and off the pitch. We're still on the up. Hopefully we've got a chance of getting some more medals this season and I think that the club will be achieving great things in the future. We're going places, setting targets and aiming for silverware, but still taking it one game at a time."
Saints chief executive Allan Robson commenteed: "Once he had made this known to us and he was able to confirm that in fact he had not signed a contract with Saracens and was free to sign with Saints we did not hesitate to offer him a deal to keep him at Saints for the next three seasons.
"Like everyone at the club I am delighted he is staying with us. Since he arrived Soane has been very popular with the fans and I am confident that he will continue to be a big player for Jim Mallinder and the coaches.
"His decision is a boost for the whole club as we enter the crucial last weeks of this season and build for the future."
The directors of ERC voted unanimously at a Board meeting to postpone all decisions including the release of further instalments of ERC's distributable central revenues to the six shareholder countries until 19 February next when the Board will meet again to reconsider the issue.