Tetevano had been training with Manly since the start of November but was suspended from all club duties with immediate effect on Friday.
The Cook Islands international appeared before Newcastle Local Court on Friday in relation to a series of late-night attacks on his former girlfriend and her property.
Tetevano pleaded guilty to charges including assault occasioning actual bodily harm; destroying property, common assault and stalking with intention to inflict fear or physical harm.
He will be sentenced on March 5, 2015.
A two-year apprehended violence order was also issued to prevent him contacting his former partner.
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“The player was signed by the club in good faith,” a Manly statement said.
“However the details of previous incidents have now been fully disclosed in a court of law.
“His position at the club will now be reviewed internally before making any further comment.”