Perofeta also injured his ankle in Wednesday's Shield defence but Taranaki coach Colin Cooper said X-rays revealed the damage was only bruising.
The injury comes at a cruel time for Black. Stuck behind Beauden Barrett at the Hurricanes for two seasons, the 22-year-old's move to the Blues was designed to give him much more game-time and the chance to properly make his mark.
Now the New Zealand Maori pivot faces the prospect of making a mid-season comeback or sitting out the entire campaign while others step into the breach.
Perofeta made a good fist of his starting debut for the Blues against the British and Irish Lions at Eden Park last year and has since grown in confidence with Taranaki this season.
While the 20-year-old is far from the finished product, he is light on his feet, possesses a dangerous running game, and is considered a handy talent by national selectors.
Now, with Black sidelined and the Blues No 10 jersey up for grabs, Perofeta has even more reason to carry his strong form into the Mitre 10 Cup playoffs.