Sam Powell and George Burgess will both miss Wigan Warriors’ visit to Castleford Tigers on Friday in round two of the Betfred Super League.

Wigan hooker Powell was taken from the field on a stretcher after he was knocked unconscious courtesy of a Chris Hill high tackle – an incident that saw the England international sent off after 23 minutes.

Wigan had earlier lost new signing Burgess to injury. He was absent from Liam Farrell’s Testimonial game against Leeds Rhinos with a hip problem, something he looked to have aggravated in the first half.

The former South Sydney Rabbitohs prop lasted less than 17 minutes in a debut he will want to forget. He was at fault for Warrington’s only try as Ben Murdoch-Masilla ran over the top of him on the way to scoring.

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Lam was happy with the way his side battled for their 16-10 win in difficult circumstances. “I’m really happy,” said Lam. “This time last year we were minus two, so it’s a four-point change.

“I think it’s clear to everyone we should have scored more points. We were clunky at times. I think when we lost Sam Powell, the quality player that he is, I think we lost our way a little bit.

“George Burgess went before him and he didn’t play a large chunk of the game.”

“He’s ok, thank god (Powell). He will probably miss next week due to the concussion tests. He (Burgess) got a knock on the hip which is something we’ve been trying to maintain over the last few weeks after he picked it up in training. Next week may be too soon for him to return.”