WEST Coast has confirmed that star ruckman Nic Naitanui had surgery on both heels on Tuesday to alleviate his inflamed tendon issues, but the club is confident he will still return within eight weeks.

Naitanui went under the knife on Tuesday night, having struggled with inflamed plantaris tendons over the past month.

It was thought that Naitanui was only struggling with one leg, but reports emerged on Wednesday night that he had minor surgery on both legs and the club confirmed that was the case on Thursday.

Coach Adam Simpson said on Wednesday the surgery was successful and he expected him back before the end of the season.

The club said on Thursday that Naitanui would be walking within the next couple of days and his estimated recovery time would still be 6-8 weeks.

The Eagles play Fremantle in round 20, the eighth week post Naitanui's surgery, before a tough run home against Greater Western Sydney away, Hawthorn at home and Adelaide away. 

Naitanui in Thursday tweeted a picture of his legs after surgery, with a reference to a verse from the Bible, "I can do all this through him who gives me strength."