Greg Inglis set for return to centre stage

South Sydney captain Greg Inglis is set for a return to the centres in 2018 in a bid to extend the former fullback's career.

Inglis has dominated the fullback position since moving into the custodian role in 2012, but a string of niggling knee injuries has left question marks over whether 'GI' can keep going at the back.

It's a bold approach from first-time coach Anthony Seibold, switching one of the game's champions from one position to another. A similar move to that of his predecessor, Michael Maguire, when he arrived in Redfern six years ago.

Alex Johnston spent the majority of last season covering the fullback role after Inglis suffered a season-ending knee injury in Round 1, scoring 22 tries in 22 games for the red and green.

The switch means the Rabbitohs will carry one of the competition's strongest centre pairings in the former of Inglis and new recruit Dane Gagai, who began training with the club this week.

While the fullback and centre spots appear all but certain, both wing spots appear wide open.

With the chance to play outside an international side on either side of the park, the likes of Braidon Burns, Robert Jennings, Richie Kennar, Hymel Hunt and Jacob Gagan will battle it out in the trials for the two spots.

Inglis will make his long-awaited return to the playing field on February 24, when South Sydney take on St George Illawarra in the Charity Shield in Mudgee.