It may seem a simple philosophy, but the key to beating the West Coast Eagles in the Carlton Mid Derby is a tried and trusted one - win the contested ball.
But that’s easier said than done.

Freo were smashed in the contested ball by the Eagles in round 9 this season, particularly in the second half, losing the match count 141-131.

This also equated to a 36-29 clearance advantage for the Eagles.

West Coast was pretty much on its contested possession season average of 142, but Fremantle was well down on its 145 per game in 2012.

The Eagles’ midfielder that clearly leads the way in contested ball is Matthew Priddis. He has averaged 15 a game in 2012, although Ryan Crowley held him to 10 in round 9.

Crowley can be expected to man Priddis again on Saturday.

Scott Selwood and Daniel Kerr have both averaged 10 contested possessions per game this season.

Kerr is still doubtful, and if he does not line up, it would amplify the absence of round 9 Ross Glendinning Medallist Matthew Rosa, who averages seven contested possessions per game, including 10 in round 9.

If recent results and statistics are any barometer, equally important to Matthew Priddis for West Coast is the brilliant Luke Shuey.

He averages 10 contested possessions per game, including 13 in the first Carlton Mid Derby.

He was suspended and missed West Coast’s round 16 and 17 games against top four sides Sydney and Adelaide.

In those games the Eagles lost the contested possession count by a combined 56, the inside 50s by 29 and the clearances by seven.

If the key to beating the Eagles is contested ball, which Fremantle players lead the way in that category? Check out fremantlefc.com.au on Saturday morning for Where Freo can win it - part 2

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Chris Mayne on target for record accuracy
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WAFL Watch featuring Zac Clarke and Jack Anthony
Training report: 2 August
From the Eagles: Shuey doubt
De Boer happy to have Fyfe back in a team "going places"