The Fijian winger suffered the injury following a direct impact just minutes after replacing Jeff Hassler, and was forced off the field and taken straight to hospital.
Medical Performance Manager, Chris Towers, confirmed:
"Aisea had an operation at the weekend and will have the injury reviewed at the end of this week after it has settled down, at which point we'll be in a better position to give a possible timeline for a return to play date."
Guinness PRO12
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