North Melbourne are confident veteran Adam Simpson will overcome a calf injury to play his 300th AFL game next Sunday, against Adelaide at AAMI Stadium.

Simpson was one of six Kangaroos injured during their loss to St Kilda at Etihad Stadium on Saturday, and was forced to play out the game sore because North had no fit players on the bench.

But the onballer, who has been in good form this season, is expected to recover to post his milestone against the Crows.

However the skilful Daniel Wells is in some doubt after his hip problem flared again.

"Simmo should be all right, but with Wells we'll just have to wait and see," North football chief Donald McDonald said on Sunday.

Of the players injured against the Saints, the only one ruled out of playing Adelaide is young forward Ben Warren, who suffered a fractured cheekbone and has since undergone surgery.

He will be sidelined for several weeks.

But North will assess Daniel Pratt (calf), Sam Power (concussion) and Sam Wright, who will undergo scans to determine whether he suffered any cartilage damage when he knocked his knee in a tackle late in the game.

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