Harlequins have announced the signing of Namibia captain Renaldo Bothma from the Bulls on a "long-term deal".
The 27-year-old number eight, who only joined the Super Rugby outfit earlier this year, will arrive at Twickenham Stoop ahead of the 2017-18 season.
"I'm really excited to move to England next summer and positively impact Harlequins," he said. "I've signed a long-term deal and I'm wanting to play a big role in helping grow the club and bring it to even higher heights.
"I'm a big believer in a positive playing environment and from speaking to [director of rugby] John Kingston, it is very clear that this is how Harlequins operates. The club has a great vibe and there is a huge family friendly nature to it.
"I have another Super Rugby season with the Bulls to concentrate on and I will be giving it my all before my move to England."
Kingston added: "Renaldo is one of the most destructive ball carriers in world rugby and so I am absolutely delighted to have secured his services on a long-term contract.
"As captain of his country, he also brings strong leadership qualities.
"He chose Harlequins over other options around the world and his signing is a major statement of where we want to take this great club over the coming years."