West Coast took just one quarter on Saturday to show why it is the AFL's clear premiership favourite, totally outclassing Carlton in a come-from-behind victory at Subiaco Oval.

In what had been a tight match until halftime, the Eagles kicked 10.5 to one solitary Carlton point in the third term, eventually running out winners 21.13 (139) to 9.8 (62).

After producing just six goals to halftime, West Coast hammered 15 goals to one after the long break to devastate the Blues.

The Eagles had 107 possessions to Carlton's 36 in the third term, perfectly illustrating the gulf in class between the two sides.

The Blues actually led by 10 points at halftime, but it merely awoke the giant in an astonishing second half of football that served notice of the Eagles' September ambitions.

Carlton coach Denis Pagan had pledged fans would see a more committed effort from the Blues following seven consecutive losses and they lived up to his word to start the game.

A lethargic West Coast put in a disappointing first quarter, apparently needing to work off the rust from the mid-season break and giving no indication of what was to unfold.

The Eagles were out-enthused by the visitors early on, with Brendan Fevola kicking three first-quarter goals as Carlton earned an 18-point lead at the first break.

Fevola continued his good form against West Coast, having kicked eight goals in the Wizard Cup grand final.

If the home fans thought the opening term was an aberration, they were sadly mistaken as Carlton continued to pressure the Eagles in the second quarter.

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