Andrew Brunette shot down the report that several of his players were at a strip club deep into the night after losing Game 3 to the Lightning.
Donaldson plans to appeal the suspension.
Denmark beat Canada in the men's world hockey championship for the first time with a 3-2 victory Monday.
Dwayne Haskins' blood alcohol content was between .20 and .24 when he died last month — which is up to three times the legal limit in Florida.