"O-Save-us."
That was the cry from some sections of the supporter base on the afternoon of September 28, 1997.
It was the day the little fullback did what he always did best - score tries, and win football games.
His double in the big dance saw him collect the Clive Churchill Medal and his maiden premiership.
Both tries came from seemingly nothing, with O'Davis weaving his magic to edge the Knights towards victory.
Not that the performance surprised anybody.
O'Davis was already a staple of the Knights having debuted in 1992 as a winger.
He made the switch to fullback a year later, where he would stay for the better part of a decade.
With his playing weight barely registering into the high 70s, O'Davis was always forced to punch well above his division.
Which he always did, without fail.
His swagger and over-confidence saw him often tear teams apart up the middle of the field, with tired forwards unable to stop him in his tracks.
He was also the perfect compliment to the Johns brothers in the halves, helping to bring together one of the most lethal spines of his era.
By 1995, he was already a Test and Origin representative, playing a key role in the 'Nevilles' side that took out a shock 3-0 win over New South Wales.
He also scored five tries in the Kangaroos' World Cup campaign.
But Robbie O wasn't even close to finished.
Two years later, the No.1 was a premiership and Churchill Medal winner, and regarded as one of the best fullbacks on the circuit.
After a year out of the game, he returned in 1999 and set about once again climbing the mountain towards another premiership.
It came in 2001.
He may not have scored that day, but O'Davis was just as crucial to the win as he was four years earlier.
O'Davis eventually called time on his career in 2004 after 13 seasons at the highest level and is still viewed as potentially the greatest fullback the Club has ever produced.
With 223 games, 78 tries, two premierships and 45 conversions, it's hard to argue against it.
