West Coast defender Tom Barrass will need surgery on his foot after a stress-related injury that is likely to keep him on the sidelines for several weeks.

Barrass was pulled out of the Port Adelaide clash and Simpson confirmed the seriousness of the injury on Monday night.

He told 6PR that it will be ‘multiple weeks’ out for the defender and that the injury will need surgery.

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Camera Icon West Coast coach Adam Simpson. Credit: AAPIMAGE

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Willie Rioli has been unavailable since the start of the season after suffering a similar injury.

Rioli has returned to running and kicking on the training track but he is still not expected to be back playing for at least four weeks.

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Speaking on 7 News on Monday, Simpson said the hardness of the ground was an issue the club was working through.

“What’s happened with us is a bit more consistent feedback from the players,” he said.

“Nothing to do with the win or loss every week, we’ve been talking about this for a long time and in the front half of the season, it’s a bit hard.”

Sports Minister Mick Murray said he was very surprised the West Coast coach had criticised the surface after the loss.

“I really do think that they have got to get with and talk with the AFL because from my understanding the oval itself sits within AFL standards, so really it comes back to working with the AFL along with the stadium group,” the Minister said.

“We have to be very careful we don’t go outside of spec by softening it too much.”

Asked of the Eagles were looking for someone to blame for the loss the Minister said: “I think so.

I think the Eagles ought to look at what really was the problem out there and I think they had a few elephants out there that were taking short steps.

Former Eagle turned Port Adelaide star Brad Ebert said his feet had pulled up "a bit sore" after last weekend's Optus Stadium outing.

"It's a hard surface, but it's not too bad," Ebert said.

"There's always some teething issues with grounds around the country and Optus is no different.

"The state's normally hot and dry, and therefore when you play them at the start of the season there, you probably expect that it's going to be a bit like that.

"I found the ground OK. It is hard than other grounds. Your feet get a bit sore.

"But I don't think it's any real concern."