Fremantle midfielder David Mundy is confident the club's twin-tower ruck of Aaron Sandilands and Jonathon Griffin can be a trump card heading into the finals after the pair kicked four goals between them against Melbourne.
It was only the third time this season they had played in a match together and in one of those games, against Richmond in round 11, Sandilands was off the field with an injured before quarter time.
They got to play together again against Melbourne on Saturday night after Kepler Bradley was ruled out with concussion and they earned a qualified tick from coach Ross Lyon.
Mundy said they would be a danger to opponents if they continued to hold their marks.
"It seemed to work," he said.
"They both kicked a couple of goals and obviously Jon is a great ruckman in his own right. To have our back-up ruckman as a qualified ruckman is obviously a strength for us.
"They are obviously both really big boys, so they give us a great target up forward. If they can keep holding their marks and play well in the ruck, it will be a good strength."
Mundy, best afield against the Demons with 31 possessions and a goal, dismissed criticism of Sandilands' ruckwork earlier this season and said the giant had maintained high standards for several years. The midfield as a whole was functioning better now, he said.
"Aaron has been playing really well, but I don't think that is any different to the last few years even when he has copped a little bit of criticism," he said. "The strength to that is that everyone around him is playing really well too and we are all on the same page, so it is good to have him out there.
"It is nice to get a bit more of the footy and be able to run around a little bit more freely. Hopefully that will continue, but the fact that the team is playing so well helps me."
Mundy said the Dockers would approach their clash with the Cats on Saturday night with confidence, believing their game plan would hold up.
"It is a whole different structure around here," he said. "We are fully confident with what we are doing at the moment. We just need to replicate it in Melbourne at the weekend.
"I think our game plan stands up. We have seen that over the last couple of months.
"We are really applying ourselves well, sticking to our game plan and hitting our KPIs. We are not afraid to go anywhere or play anyone."
Mundy acknowledged injured Luke McPharlin would be a loss, but said the game plan was built around being able to replace any individual. Retiring Antoni Grover and Alex Silvagni were the most obvious contenders for McPharlin's defensive role, he said.
"Antoni Grover is obviously a proven player and it would almost be a bit of a fairytale if he came in," he said.
"Alex Silvagni is a very accomplished player and has done a lot of jobs for us in the past. But regardless of who comes in or where they play, we are pretty confident that guys will step in and play their role.
"All the boys are right across what we need to do. Guys come in and play a couple of roles in a couple of games. They really stand up for the team and that is what we are about. We are a 22 man on the weekend team, it is not about any individual."