Fyfe sent a scare through the Fremantle camp late in the third quarter when he left the ground clutching his reconstructed left shoulder, but he returned in the final term to top off a brilliant 30-possession performance.
The star 21-year-old was a clear best-on-ground in the 0.23.8 (146) to 0.5.7 (37) win, leading a dominant Fremantle midfield with eight clearances and 17 contested possessions.
It was an impressive return to form for the Brownlow Medal fancy after a lacklustre performance against Carlton at Etihad Stadium seven days earlier.
Fremantle captain Matthew Pavlich and sharpshooter Chris Mayne shared centre stage in the first half as the team's forward line came together just in time for the round one clash with West Coast.
Pavlich moved well and kicked three goals in his first game for the pre-season after off-season back, hip and Achilles tendon surgery.
Mayne, meanwhile, was eye-catching in his return from an ankle injury, kicking three goals and taking two soaring marks to highlight his importance to Fremantle's forward set-up.
Fremantle played close to its best side two weeks out from the Derby, with David Mundy (24 disposals), Matt de Boer (three goals) and Michael Walters (four) also impressive.
The Bulldogs were missing up to half of their best line-up, including midfielders Matthew Boyd, Daniel Cross, Ryan Griffin, and Liam Picken.
Brownlow medallist Adam Cooney, who was one of just four Bulldogs with more than 35 games' experience, returned for the visitors and showed glimpses despite close attention from tagger Ryan Crowley.
Recruit Koby Stevens (27 disposals and three clearances) was the Dogs' best, however, proving he will be a valued midfielder after crossing from West Coast in search of more playing opportunities.
With the temperature reaching 33 degrees in Mandurah, both teams were allowed unlimited rotations with six interchange players each.
What it means
The round one clash between the WA sides will be a blockbuster as both teams will have close to full-strength teams for the clash. Fremantle has strong cover for injured star Aaron Sandilands in the ruck, with Zac Clarke showing good signs against the Dogs when he was in the centre square. Lyon also trialled Kepler Bradley in defence as he contemplates a tall Eagles' forward line. The Bulldogs won't dwell on Saturday's result, with more to be read into how they perform with a more experienced side next weekend.
What they said
"I could have kicked one today at one point. They were young and it opened up and [we're] respectful that they're a young, emerging team and we're a team we feel on the rise and we needed to do what we did."
– Fremantle coach Ross Lyon
"They were wound up today Freo, a very mature, strong team, and they play a terrific brand of footy. They play footy the right way and I think a lot of that wasn't lost on our young players."
– Western Bulldogs coach Brendan McCartney
Fantasy snapshot
Koby Stevens was the Bulldogs' leading Fantasy scorer with 69 points, ploughing through a tough afternoon to win a team-high 23 possessions. The former Eagle has impressed coach Brendan McCartney and appears a lock for the Dogs' round-one team. There is plenty of scope for improvement in his scores, with the hard-nosed midfielder laying just one tackle and taking two marks.
FREMANTLE 0.5.2 0.11.3 0.17.6 0.23.8 (146)
WESTERN BULLDOGS 0.2.3 0.2.5 0.4.5 0.5.7 (37)
SUPERGOALS
Fremantle: Nil
Western Bulldogs: Nil
GOALS
Fremantle: Walters 4, Mayne 3, Pavlich 3, de Boer 3, Ballantyne 2, Crozier 2, Duffield, Griffin, Hill, Mzungu, Neale, Suban
Western Bulldogs: Austin, Cooney, Dahlhaus, Dickson, Cordy
BEST
Fremantle: Fyfe, Mundy, de Boer, Mayne, Pavlich, Walters, C. Pearce
Western Bulldogs: Stevens, Smith, Dahlhaus
INJURIES
Fremantle: Nil
Western Bulldogs: Nil
Reports: Nil
Umpires: Farmer, Margetts, Leppard
Official crowd: approx. 5,000 at Rushton Park
