WEST Coast has suffered a big blow with captain Darren Glass forced to withdraw from Sunday's crunch match against North Melbourne at Patersons Stadium.

The Eagles skipper pulled-up sore from the club's final training session on Saturday morning and has been replaced by running backman Will Schofield.

Jeremy McGovern replaces Schofield as an emergency.

The Eagles have a 4-5 win-loss record this season and could draw level with the Roos on five wins with victory on Sunday.

Twitter: @TravKing_AFL