West Coast was plucky but fast-finishing Port Adelaide stormed to a comeback 26-point win at Adelaide Oval on Sunday.

The Eagles burst out of the blocks and led by 33 points in the opening quarter before the Power rallied to a 12.15 (87) to 9.7 (61) victory.

The Power, who lost captain Connor Rozee to a finger injury, kicked the opening goal of the match but didn't hit the front again until early in the final term.

West Coast produced its highest scoring quarter under first-year coach Andrew McQualter, booting 6.3 to 2.2 in the opening term, getting out of the gates quickly in Jamie Cripps' milestone 250th game for the club.

The Eagles flourished with a 17-8 inside-50 dominance on a day when it was announced their midfielder Jack Graham had been suspended by the AFL for four matches for a homophobic slur against an opponent.

West Coast's 25-point lead at quarter-time prompted stern words from Power coach Ken Hinkley to his players.

But the Eagles, after a superb Liam Baker goal when the ex-Tiger had two disposals in the chain and then converted with a third, were still four goals up midway through the second stanza.

The tide then turned, with Port scoring two quick majors to creep within eight points.

But late set-shot misses from Port pair Mitch Georgiades and Jack Lukosius ensured the visitors led by 11 points at half-time.

Both teams kicked two majors in a tight third term – Port kicked 2.6 and scores were level until a late Jobe Shanahan strike gave the Eagles a six-point edge at three-quarter time.

But Port's Darcy Byrne-Jones put his side in front five minutes into the final term – the first of five successive goals for his club.

Power forward Georgiades kicked 3.5, Jason Horne-Francis booted three majors from 27 disposals, and Joe Richards and Byrne-Jones kicked two goals each.

Zak Butters, whose 38 disposals included 14 in the first term, was brilliant as Port booted the last five goals of the game to triumph.

Port's standout Butters received solid midfield support from Brownlow medallist Ollie Wines (25 touches), and Kane Farrell (20) was creative at half-back.

West Coast young gun Harley Reid gathered a team-high 26 disposals, Clay Hall (21 touches) and Jack Williams (two goals) impressed, while veterans Liam Duggan (21) and Baker (18) were prominent.

Jobe Shanahan continued to impress with his strong attack on the football in the air and smarts on the ground, while Harry Edwards took an outstanding nine intercept marks in a brilliant effort down back.

West Coast returns home to face Richmond on Saturday night at Optus Stadium in round 19.

PORT ADELAIDE          2.2     5.6     7.12     12.15 (87)
WEST COAST               6.3     7.5       9.6       9.7 (61)  

GOALS
Port Adelaide: Horne-Francis 3, Georgiades 3, Richards 2, Byrne-Jones 2, Boak, Bergman
West Coast: J.Williams 2, B.Williams, Shanahan, Reid, Flynn, Dewar, Brockman, Baker

BEST
Port Adelaide: Butters, Horne-Francis, Richards, Wines, Georgiades, Farrell
West Coast: Reid, Edwards, Baker, Hutchinson, Cole

INJURIES
Port Adelaide: Rozee (finger)
West Coast: Nil

LATE CHANGES
Port Adelaide: Nil
West Coast: Liam Ryan (soreness) replaced by Noah Long

SUBSTITUTES
Port Adelaide: Will Lorenz (replaced Connor Rozee in the third quarter)
West Coast: Noah Long (replaced Malakai Champion at three-quarter time)

Crowd: TBC at Adelaide Oval