Canada Cup without a sponsorTORONTO (CP) - General Motors has withdrawn its sponsorship of Canadian teams in both the world championships and Canada Cup and Alan Eagleson, chairman of Hockey Canada’s international committee, said the Canada Cup tournament this fall is in limbo.“There’s nothing definite, but it doesn’t look good for the Canada Cup,” Eagleson said Tuesday.The Toronto lawyer has been in a power struggle with Gordon Renwick of Cambridge, Ont., president of the Canadian Amateur Hockey Association, in recent months over who is responsible for arranging tourneys involving national and professional teams.Eagleson said the CAHA was asked to agree in writing by Jan. 15 to Hockey Canada stipulations that Guenther Sabetzki, president of the International Ice Hockey Federation, approve all international exchanges involving National Hockey League and World Hockey Association teams, and that Canada be represented at all future junior world champions by a select team.“We heard that the CAHA had agreed to Mr. Sabetzki approving the exchange games with the professional exchanges, but we’ve had nothing in writing,’’ Eagleson said. He said the approval had been reached at an IIHF meeting earlier in the month but Renwick had refused to sign the documents, saying hefirst had to get CAHA board approval.The only word Eagleson said he has had on the CAHA board meeting was in the form of a news release.“Nor have we received anything in writing about the juniors.”New Westminster Bruins of the Western Hockey League, 1978 Memorial Cup champions. with several players from other Canadian Major Junior Hockey League clubs in the lineup, represented Canada at the world junior championships in Sweden this year and failed to make it to the championship round, placing fifth over all.“They (the CAHA) didn’t honor their end of the bargain so we had to let GM off the hook,” Eagleson said. “There’s no chance they’ll come back.”Eagleson said he didn’t think anything the CAHA did was “soluble’- so long as Renwick was in a position where he wielded any power with the amateur body.“He doesn’t trust me and I don’t trust him,” said Eagleson. who is also executive director of the NHL Players’ Association.Eagleson said he couldn’t fault GM for pulling out of it’s $2.5-million commitment to the two tournaments this year. He noted the firm had invested over $1 million in the country’s hockey program over the last three years and “expected to be treatedproperly.”