The Eels and Roosters may be massive underdogs heading into this weekend's semi-finals but they have one golden commodity in their favour and that's momentum.
Both were taken to wire in tense sudden-death clashes in week one before digging deep to keep their seasons alive.
The positive vibes will be coursing through the Roosters camp after their young superstar Sam Walker nailed a late field goal before they survived a desperate Titans raid to win 25-24.
After a season that could so easily have been derailed by injury, suspension and retirements, Trent Robinson's men keep finding a way. Belief will be sky-high.
The Eels sat fourth with a month to go but surrendered the double chance on the back of crushing defeats to Manly in round 22 and the Panthers in the final round, although they did end the Storm's 19-game winning run in some style in round 24.
After resting a host of stars in round 25 they were back to full strength against the Knights and showed plenty of good signs in a 28-20 win which set up a rematch with the Panthers.
With Mitchell Moses' running game back on song and Reagan Campbell-Gillard and Junior Paulo leading the way up front, the Eels will give themselves every chance of toppling a Panthers team down on confidence after a shock loss to the Rabbitohs.
Wayne Bennett's team did a superb job of neutralising Nathan Cleary and their forwards dominated the Penrith pack, and that's the blueprint the blue and golds will take into battle on Saturday.
During the past 12 years, the momentum factor from week one of the finals has carried four teams all the way to a grand final - North Queensland in 2017, Bulldogs 2014, Roosters 2010 and Eels 2009.
The Cowboys' charge in 2017 was made even more remarkable by the fact their main man Johnathan Thurston was absent from round 14 onwards with a shoulder injury. They finished eighth after losing five of their last six matches.
After edging past fifth-placed Sharks 15-14 in an elimination final they stunned the fourth-placed Eels 24-16 in the semis and second-placed Roosters 29-16 in the preliminary final to progress to the big dance against Melbourne.
It was a similar giant-killing run that took Canterbury from seventh at the end of the 2014 regular season to a grand final showdown with Souths, courtesy of wins over Melbourne, Manly and the Panthers.