Victory at Old Trafford next month would end a run of five Grand Final defeats for Saints.
It would also end one of the most remarkable coaching stories in Super League history.
Seven months ago, back room worker Rush, 36, was helping mark out the pitch for the club’s opening game.
He has also done a host of other jobs at the club but was virtually unknown outside Saints.
He never had any desire to be a head coach but agreed to help out in March when Royce Simmons and assistant Kieron Purtill were sacked.
Since then Saints have only lost four out of 20 league games and have climbed to third. They go into today’s opening play-off game at Warrington on fire after a win over league leaders Wigan.
But whenever Saints’ season ends, Rush insists he will happily hand over the reins to new boss Nathan Brown.
He hasn’t even asked to stay on Brown’s coaching staff.
He said: “I’ll go back to dealing with the young kids at the club, that’s what I’m happy doing.
“If we win the Grand Final I could probably retire on the back of that. Living in St Helens I do not think I’d have to do a day’s work again.”
• MICK POTTER has rejected an offer from Bradford’s new owners to stay as coach.
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