Defender Neville Jetta says Melbourne have been in the right kind of form to give themselves a chance of reaching the Grand Final.
The Demons will need to win at Optus Stadium against West Coast on Saturday to reach the decider.
It's not an easy place to go, but they will travel in some confidence having won there in the penultimate round of the home and away season.
Rioli is very, very good at ground level and Ryan loves to play as an old-fashioned full-forward, lead and jump.Neville Jetta
That 17-point victory is one of six wins they secured in their last seven games.
Since the mid-season bye in round 13, Simon Goodwin's side have enjoyed some big wins while all their four defeats have come by 10 points or less.
Jetta says the Demons' defensive commitment has been evident, and they'll need it again when they take on the Eagles who finished second on the ladder.
"We need to go over there as a back six and I feel like we've gelled and improved throughout the year," he said. "Our past five or six weeks have been our best for scores against us and we're going to back ourselves again.
"But it's not just the backs versus forwards, it comes down to our whole team defence and our blokes have been unbelievable this year putting pressure on."
For 28-year-old Jetta, the preliminary final is a return to his home state of Western Australia - he was born in Bunbury and played for Swan Districts in the WAFL before Melbourne picked him up in the 2008 AFL Draft.
He expects to have the task of taking on either Liam Ryan or Cyril Rioli, who have both averaged better than a goal a game this season.
"Rioli is very, very good at ground level and Ryan loves to play as an old-fashioned full-forward, lead and jump," he said.
"We're going to have our hands full and we're going to have to play a lot better than what we did last week against Hawthorn."
Melbourne are 11/10 to win their preliminary final against West Coast, who are 77/100.
The Demons are 9/10 with a 3.5-points start.
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