Roger Tuivasa-Scheck has taken to social media to end rumours of a possible return to the NRL from rugby union.

Roger Tuivasa-Scheck has moved to end speculation he could return to the NRL from rugby union.

All Blacks great John Kirwan raised the possibility on a New Zealand tv rugby show last weekend, saying there was a "little whisper" of a contract available from the Sydney Roosters while urging the national team to play Tuivasa-Scheck more.

His comments came after the 2018 NRL Dally M Medallist made the second of just two 10-minute cameo appearances for the All Blacks so far this year in their demolition of the Wallabies to clinch the Rugby Championship.

However 29-year-old former Roosters and Warriors fullback Tuivasa-Scheck made it clear he was committed to rugby union, at least till after the 2023 Rugby World Cup.

"Hey team, hearing a return to NRL and Sydney Roosters. As much as I enjoyed it there, I won't be heading back. Signed sealed delivered till the end of 2023," Tuivasa-Sheck posted on his Instagram story on Saturday night.

The ex-Warriors skipper has impressed observers with his potential and commitment since making the switch to union last year, playing as an inside centre for the Auckland-based Blues in Super Rugby.

The All Blacks' early patchy form and losses this year probably cost him more playing minutes with the national team to date in 2022.