It's all about confidence now: Inglis

South Sydney captain Greg Inglis says it's touch and go whether he'll play in his team's NRL season-opener on March 10.

Inglis took a major step in his recovery from an ACL reconstruction by completing his first full week of training last week, but he remains doubtful for the round-one clash against the Warriors in Perth.

"It's just more about (getting) the confidence back in it. In our game there's a lot of high speed turning and twisting. That takes a toll on anybody's knee," Inglis told AAP on Monday.