Mealey's (June 30, 2016, 2:28 PM EDT) -- MINNEAPOLIS — Former professional hockey players say in a June 27 briefing to the judge overseeing the National Hockey League (NHL) concussion multidistrict litigation that an insurance company gathering documents for discovery has overestimated its burden (In re: National Hockey League Players Concussion Injury Litigation, MDL No. 14-2551, D. Minn.)....