Sydney Swans star Adam Goodes is reportedly set to undergo revolutionary stem cell treatment in a bid to prolong his AFL career.

According to News Corp, Goodes has requested the treatment on his troublesome right knee after also undergoing the procedure in January.

He wants to do it again, Swans medico Dr Nathan Gibbs.

Its saved his career. He would have retired a year ago.

Speculation has mounted that Goodes will hang up the boots after Sydneys humiliating loss in the AFL grand final against Hawthorn.

The fire still burns ... It can't help but burn after that loss.

The 34-year-old was among very few Sydney players who played well in the shock defeat.

He hurt his right knee in the grand final 2012 which damaged joint surface, then he damaged the cartilage in the same knee against Port last year, Gibbs said.

Goodes looks shattered after the grand final. Source: Getty

It was terrible because it was the last thing he needed. The surface damage of his knee was extensive, the medial and lateral sides were pretty bad and he just couldnt recover from it.

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Revolutionary treatment to extend Goodes' career?