Memories of a 2011 finals loss to Wests has motivated Robertson to gain revenge in this Sunday's minor semi-final.
A devastating opening 10 minutes in 2011 left Robertson trailing 4-0 to their top-four rivals, knocking them out of the running for the Premier League title.
Two years later, Robertson's Nathan Wright is determined to avoid deja vu.
"We definitely have to match them early or we will be gone," Wright said.
"I think they are going to come out of the blocks really hard, they did last game we played them.
"If we try and just let the game take its course we will be two goals behind so we will have to set the pace and play our game."
Wests trumped Wright's squad 3-2 when the teams met in round 20, but spoils were shared in the season-long duel.
With University and Albion Park locking down the top-two spots for most of the season, Wests and Robertson were destined to fight it out all year long.
"It is pretty much our grudge match," Wright said.
"We are usually just fighting out that third and fourth spot so it will be a tough one.
"We are definitely playing to get an extra game out of it for sure."
The loser of Sunday's match will begin their off-season early - a factor Wests star Elliot Ashby is more than aware of.
"This is the do-or-die part of the season so we need to get results to keep progressing," Ashby said.
"They are very young and fast and good at scoring goals, so I think the key to our success on Sunday will be our defensive effort."
Meanwhile, University will take on Albion Park in the major semi-final.
The Students rounded out a memorable campaign with a 7-1 win last weekend against Fairy Meadow and will be looking to bring that form into Sunday's clash.
Park, on the other hand, need to bounce back from a disappointing 3-1 defeat to Wests.
The winner will book their place in the grand final in a fortnight's time.
In the women's finals, minor premiers Albion Park will take on fourth-placed Jamberoo.
Park enjoyed the final round of the regular season off last weekend, while Jamberoo secured their finals spot with a 2-0 win over Fairy Meadow. Roos were the beneficiary of Gerringong's shock 2-1 loss to Figtree which cost them a shot at the post-season.
In Saturday's other semi-final, University play Avondale in a double-weighted clash.
The winner will make both the combined and Illawarra grand finals while the loser will be knocked out of the combined competition and are forced to play a preliminary final to make the Illawarra showpiece.
In the Illawarra competition minor semi-final, Figtree do battle with Wests Illawarra.