Wallabies scrum cornerstone Allan Alaalatoa has signed a four-year contract extension, keeping him in Australian rugby through to the 2023 World Cup.

The 24-year-old tighthead prop says he rejected interest from overseas clubs to stay long-term with the Wallabies and Super Rugby’s Brumbies.

Big and mobile, Alaalatoa has amassed 30 Test caps since his debut in 2016.

He is currently holding off the challenge for the Wallabies starting spot from rising star Taniela Tupou and 100-Test veteran Sekope Kepu as Australia prepare for their Spring Tour of Wales, Italy and England.

“I was already contracted for next year but when the opportunity came up to stay until the next Rugby World Cup, I discussed it with my family and the decision was a pretty easy one,” he said.