ZURICH — A former aide to one-time FIFA presidential candidate Mohamed bin Hammam has been banned for life in a bribery case. FIFA ethics committee judges said Friday that Najeeb Chirakal was involved in “several unethical payments made on behalf of a third party to various football officials between 2009 and 2011.” It is unclear if those officials who took cash are also under investigation. In the two-year period to 2011, Bin Hammam was Asian Football Confederation president and a FIFA powerbroker.