AFL’s official statistics provider came to the conclusion in the AFL 2017 Prospectus on the back of a brilliant 2016 season for Greater Western Sydney (GWS).

Williams rated elite after a season when he averaged 5.6 ground ball gets a game and was ranked seventh among general defenders for score involvements.

He also combined for an average 405 metres gained a game, a damaging statistic given his ball use off half-back was rated elite.

When assessing Williams for the upcoming season, the 2017 AFL Prospectus did not beat around the bush.

"Williams is the most underrated player in the AFL,” it stated.

Such is the impression he has made on Champion Data, he was ranked equal-second behind Geelong's Brownlow medallist Patrick Dangerfield under a new measurement introduced called ‘relative ratings’. 

According to Champion Data, the relative ratings measure takes into account ‘how a player is performing relative to others in his position at the same age, compared to all other players from 2010 onwards’.

While GWS have enjoyed a number of top draft picks, Williams was a steal when selected at 55 in the 2012 AFL Rookie Draft. 

Williams was best on ground in Narrandera’s 2012 Riverina League grand final win in his last game before being drafted.

The 22-year-old has since racked up 53 AFL games and finished seventh in the Giant’s best and fairest count last season.

Significantly, Williams is out of contact at the end of the upcoming season.