British and Irish Lions

The 27-year-old, who has 46 Springboks caps, has agreed a three-year deal to join Saints from Cape Town-based Super 14 side The Stormers.

The date of Van Niekerk's arrival will be determined after the announcement of South Africa's World Cup squad on July 23.

Van Niekerk said: "It's an absolute challenge to come overseas and to come to a club that's as rich in tradition and history as Northampton is an awesome thing.

"I could not believe the supporters when I came to watch the game, they were very passionate. I'm looking forward to it immensely."

Northampton were relegated from the Premiership last season but have already signed Scotland prop Euan Murray and Wigan full-back Chris Ashton for the next campaign.

Saints director of rugby Jim Mallinder said: "Joe will be a key part of the squad over the next few years and brings undoubted experience and leadership.

"Joe's contract is a big commitment, not only by him but for the club.

"In signing him for three years we are taking a longer-term view on the contribution he will bring to Franklin's Gardens and are delighted that he will be joining us."

Qantas Wallabies head coach Robbie Deans says he picked his Test team for Saturday's opening international based on how his side plans to play rather than on what The British & Irish Lions will bring to the table.

Warren Gatland says he and his British & Irish Lions Test team are fully aware of the size of the threat posed by Qantas Wallabies wing Israel Folau this weekend.

Less than four kilometres away from the Suncorp Stadium, venue for the opening Test between the British & Irish Lions and Qantas Wallabies on Saturday, lies the grave of the man who took the starring role in the first international between the two teams in 1899.