Pat Lambie will move to fly-half for the Sharks at the start of the 2013 Super Rugby season after spending last season mainly at full-back.
Springbok Lambie is set to replace the departed outside-half Frederic Michalak who has returned to France.
Lambie can now focus on playing in the position he plays for the national side and building a partnership with inside-centre Francois Steyn.
Head coach John Plumtree told the club's official website: "It was good to see him play those Test matches at fly-half, but I think it's also important to understand that the Boks play a different style of rugby to us.
"I think the Boks play more off the scrum-half and we generally play more off 10 so he'll have more responsibility with The Sharks.
"But he started playing really well at fly-half in last year's Super Rugby competition before he got injured, and then obviously Fred came into that role.
"I think people forget that Pat picked up quite a few injuries last year, so he didn't have a great season in Super Rugby from an injury perspective.
"But hopefully the injuries will stay away this season and he'll be able to get a good run of games in that position."