Subiaco face a nervous wait for the results of scans on Lachlan Delahunty's right knee after the key big man had another injury setback in the Lions' 25-point win over West Perth at HBF Arena on Saturday.
Delahunty's right leg got caught under a falling opponent during the second quarter and twisted, causing him serious discomfort.
He hobbled off the ground with suspected medial ligament damage and played no further part in the game.
The incident was similar to one in round 11 which sidelined Delahunty for a month.
Despite losing one of their most important players, Subiaco controlled large parts of the contest and prevailed 13.19 (97) to 11.6 (72), to give a boost to their chances of finishing in the top two.
Delahunty, who joined Subiaco from VFL club Frankston, was in fine form early in the season.
He was named in the initial WA State squad for the game against the NEAFL representative team in May, but was forced to withdraw through injury.
Subiaco football manager Luke Sanders was confident Delahunty would be back in action before the end of the home and away season.
"We'll just try to get him right now for the finals," Sanders said.
"He provides that versatility down forward as a key marking target and has good running capacity to play up on a wing.
"He also showed that he could pinch-hit in the ruck in the first half of the year when Andrew McDougall was out, so he's a good utility player for us."
Delahunty had shaped as an important piece of the puzzle for Subiaco against West Perth, with leading goal kicker Matt Boland out of the side with a hamstring strain.
Andrew McDougall stood up in attack, kicking two goals from long-range set shots.
He was one of 11 goal kickers for the Lions, who held West Perth goalless for a 45-minute stretch in the second and third quarters to take a stranglehold on the game.
The Falcons came to life at the end of the third term, piling on five goals in 10 minutes to breathe life into the contest after trailing by 46 points.
They got within two goals midway through the final quarter but Subiaco steadied with goals to Kyle Halligan and Rhys Waters.
The defeat all but ended West Perth's premiership defence.
The Falcons sit fifth on the ladder, three wins adrift of fourth-placed East Fremantle with just six games to play.
The task ahead is extremely difficult, with the Falcons due to play three sides above them in the coming month.
They must also factor in a trip to Geelong for the Foxtel Cup grand final against VFL club Williamstown on Tuesday week.
West Perth had some success off the field, with 5362 fans flocking to their annual International Football Festival fixture.
We'll just try to get him right now for the finals." *Luke Sanders *