South Sydney forward David Fa'alogo will miss the rest of the NRL season after being found guilty of striking at the judiciary.

Fa'alogo was suspended for seven matches for his king hit on Sydney Roosters five-eighth Braith Anasta, the ban to keep him sidelined from the Rabbitohs first finals campaign since 1989.

The suspension also rules him out of contention for the New Zealand side for the end of season Test against Australia and has left his berth on the Kiwi tour of the northern hemisphere in October in doubt.

Earlier Kiwi superstar Sonny Bill Williams had his striking charge downgraded.

Williams will now miss only Saturday night's qualifying final against North Queensland in Townsville.

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