"It's obvious how good a side they are," Mannah said.
"You can't afford to go to Melbourne and not go for the full 80 or else they can embarrass you."
"Across the park they've obviously got the big three, and then they've got a lot of good players who do their job really well: they wrestle really well, they slow teams down very well, and I think the speed of the game is going to be something we need to control."
But while past performances make it clear how skilful the Storm side is in dominating the ruck, it also shows an even split between the two teams in recent years: each side has won five of the last ten Parramatta-Melbourne encounters.
"We've had a bit of success against them in the last few years so we've got a bit of confidence from that," Mannah said.
"We'd love to get there and have a big upset; we've just got to make sure we get there with the right attitude."
"The Tigers game it was nice to get a bit of a win, to get some enjoyment in the week, unfortunately we didn't get that win against the Broncos so it was back to square one: making sure we knuckle down a bit and get ready to work hard tomorrow."
"It's our goal to see if we can get a few upsets along the way and get a few teams disjointed before the finals."