Northampton Saints have signed double World Cup winner Owen Franks, who will move to England before the end of the year.

Franks, 31, has played 105 times for New Zealand after making his debut in 2009 and won the World Cup in both 2011 and 2015.

He will join from Kiwi club Crusaders and will team up with his older brother Ben who already plays for the Saints.

Franks is the All Blacks' most-capped prop of all-time.

“I’d like to thank Chris Boyd and Northampton Saints for showing faith in me and giving me this opportunity to come and play in the Gallagher Premiership,” Franks said.

“I’ve always taken a keen interest in northern hemisphere rugby so I’m looking forward to coming to the UK and proving myself, while the prospect of playing at Franklin’s Gardens in front of Northampton’s passionate supporters is hugely exciting for me and my family."

Franks has never played outside his home country but did play three tests against the British and Irish Lions in 2017.

“Owen is a world-class operator whose record speaks for itself," said Northampton director of rugby Chris Boyd.

"He not only will improve the quality within our playing squad, but – like his brother – his attitude will set the standard for the entire group."