Sydney Roosters captain Braith Anasta says he has overcome an ankle injury and will lead his side out for their NRL opening round clash with South Sydney on Sunday.

Anasta has battled a fractured ankle he suffered in June last year and missed all the Roosters' pre-season trials.

"It's going really well, I really tested it in the last few weeks and I'm pretty much certain I'll be playing this week," Anasta said on Monday.

"It's been a long process, it's been quite a few months and I pretty much had the freedom of not playing the trials and just getting prepared for the first game, which was the goal."

Anasta said coach Brian Smith would give him until match day to confirm he would take the field.

"Unless there's a mishap, I'll pretty much be playing and he'll give me right until game day," Anasta said.

The skipper's return will be a welcome boost for the young Roosters side at ANZ Stadium as they take on highly-rated traditional rivals the Rabbitohs.

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