Bordeaux - Former Bulls scrumhalf Heini Adams announced on Monday that he will retire from rugby union at the end of the season.
The 35-year-old is currently playing for Bordeaux-Begles in the French Top 14, and is hoping to help them win a first national title.
They currently sit just one point outside the sixth and final playoff spot with two regular season games remaining.
Adams has been a key player for Bordeaux since joining in 2010 from the Bulls, helping the French club win promotion to the top flight in his first season.
Out of contract in June, he has decided to stop playing after suffering repeated cases of concussion and will take up a role with the Bordeaux youth coaching staff while also helping the first-team scrumhalves.
Adams never played a Test for the Springboks, but played a tour match against Leicester on the team’s trip to the Northern Hemisphere in 2009.