South Africa flanker Schalk Burger has agreed to join Aviva Premiership champions Saracens on a two-year deal that expires in 2018.
Burger, a veteran of four World Cups and a winner of the sport's greatest prize in 2007, will arrive at Allianz Park next season upon completion of spells at Japanese club Suntory Sungoliath and Super Rugby province Stormers.
The 32-year-old back row, who was a key player for South Africa during their march to the semi-finals at England 2015, has been capped 86 times and was named world player of the year in 2004.
"I'm delighted to be joining Saracens. I'm extremely excited to have the opportunity to play in both the Premiership and European Cup - two of the leading competitions in world rugby - for such a special club," Burger said.
"It's an exciting challenge for me and my family and hopefully I can add a lot of value on and off the field to an already successful group of players and coaches."