Damien Cook has made more tackles this season than any other player in the finals but winning has refreshed his body after a slog of an NRL season.
The NSW Blues star has made 878 tackles from 21 games this year - easily the most of any player in the finals.
And across the entire NRL, he sits second behind St George Illawarra workhorse Cameron McInnes who made 880 tackles in just 18 games.
At the back end of Sunday's 46-20 thrashing of Newcastle, Cook stayed down after hits and appeared to look to the bench to come off.
Understandably too after playing 19 games straight in the middle while churning out an average of 41 tackles.
However, he eased concerns of a serious injury by explaining he knocked knees with Knights fullback Kalyn Ponga and will be right to play Parramatta at Bankwest Stadium on Saturday.
He said the slog of the season took its toll on minds and bodies midway through, but now there's a premiership in sights all ailments have miraculously eased.
"In the middle of the season we were feeling it a little bit more," he said.
"Winning makes a massive difference and now that we're starting to learn our roles in the team and everyone is doing their job and doing their part, we're not really feeling that.
"It's obviously a lot easier after a win as well but now that we're realising we're playing good footy and there's only three weeks to go now, everyone has just got to put 100 per cent into these next three weeks.
"It's anyone's game, it honestly is.
"Anyone who is left can win it so we've just got to make sure we play South Sydney footy."
That style of football has taken time to develop but has fallen into place over the past fortnight.
Their 60-8 win over Sydney Roosters into a 26-point win over the Knights on Sunday made for the biggest back-to-back wins in their club history.
The 46 points they scored against the Knights also created a club record for finals.
It presents a daunting task for the Eels who were thumped 38-0 by Souths back in round 16, but Cook says that scoreline is irrelevant now.
"We'll forget that game because we saw what Parramatta did (on Saturday) to Melbourne, they had a great game," he said.
"It won't be the same Parramatta side that we versed a few weeks ago.
"They're playing with a lot of confidence again and that's a dangerous thing.
"They're a quality side and that's why they were a top four side all year because when they play with that confidence they're very dangerous."