SAM WALSH, the AFL's most exciting young player, has re-committed to Carlton until the end of 2022.

In a resounding show of faith in the Blues, it is believed Walsh agreed to the new deal on Tuesday night, just four matches in to his AFL career.

The overall No.1 pick in last year's national draft, Walsh has stunningly averaged 26 disposals in those four games - losses to Richmond, Port Adelaide, Sydney and Gold Coast.

He has been listed among the Blues' best players in each match, and earned the round four NAB Rising Star nomination.

RISING STAR The advice that helped a young gun become an instant hit

The re-contracting of Walsh is significant in this tumultuous on-field period for the club, as he has already formed a dynamic partnership in the midfield with star captain Patrick Cripps.

Cripps re-worked his deal with Carlton last year, and is contracted until the end of 2021.

Carlton also secured fresh deals with young guns Charlie Curnow, Paddy Dow and Zac Fisher last season.

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