The dynamic teenager, brother of All Black winger Julian, joined the Hurricanes for this season after winning rave reviews for his performances in New Zealand's provincial championship.
The 19-year-old openside will now have to wait until March 17 to make his Super Rugby debut after being found guilty of a tip tackle on Waikato Chiefs halfback Augustine Pulu in a pre-season match on Saturday.
"The tackle was clumsy with elements of recklessness," said a New Zealand Rugby Union media release detailing the ruling of Tuesday's judicial hearing.
"Savea's poor technique contributed to the dangerous nature of the tackle as he lost control, posing potential risk of injury to Pulu's neck or head."
Savea will miss the Hurricanes' season-opener against Auckland Blues next weekend as well as fixtures against Queensland Reds, Canterbury Crusaders and Otago Highlanders. (Reporting by Nick Mulvenney in Sydney, editing by Peter Rutherford)