Montreal police fully cleared Andrei and Sergei Kostitsyn of any illegal activity after the Canadiens players were linked to a man who was arrested in a sting operation in February.
A police spokesman told Le Journal de Montreal that 5,000 phone calls made by Pasquale Mangiola were replayed to see if he had any incriminating conversations with the brothers.
According to Le Journal, roughly 2,000 of those calls involved the Kostitsyns, but there was no evidence of criminal activity or sports betting. There was also no evidence of any wrongdoing with Canadiens defenceman Roman Hamrlik, who was also associated with Mangiola.
Mangiola faces several charges, including drug trafficking, conspiracy and possession of a firearm in connection with cocaine transactions.