ottawacanadas antitrust watchdog claims in court filings that the sale of certain wireless assets wouldnt suffice to address concerns about a rogers communications incs proposed 16 billion takeover of shaw communications inc in an application with canadas competition tribunal which is responsible for adjudicating antiturst cases in the country the antitrust regulator  known as the competition bureau  said the sale of shaws freedom mobile division with over 2 million wireless customers to another investor will not alleviate the likely substantial prevention or lessening of competition and will further impair the tribunals ability to order an effective remedy this poses a hurdle in the attempt by rogers and shaw to save the 16 billion transaction involving two of canadas largest companies involved in cable television internet and wireless services rogers and shaw in a joint statement issued on saturday said they were working with federal authorities to address antitrust concerns  including the possible sale of freedom mobile the competition bureau said monday it would begin legal proceedings to block the transaction which would see rogers pay 4050 canadian dollars or the equivalent of roughly 3100 per shaw share for control of its calgary albertabased competitor shares in shaw closed tuesday on the toronto stock market at c3541 or up 15 from the previous days session roughly 20 pages of legal filings from the bureau related to the possible sale of freedom mobile and why it wouldnt satisfy the regulators concerns were redacted the redacted pages though suggest rogers had a deal in place in late march to sell freedom mobile to another buyer however no further information about the possible deal is available due to pages blacked out likely to hide confidential business information