GENEVA—Former FIFA officials Sepp Blatter and Michel Platini were charged with fraud and other offenses by Swiss prosecutors on Tuesday after a six-year investigation into a controversial $2 million payment. The 85-year-old Blatter and 66-year-old Platini now face a trial at federal criminal court in Bellinzona. They could be jailed for several years if found guilty, though Swiss cases often take years to reach a conclusion. “This payment damaged FIFA’s assets and unlawfully enriched Platini,” Swiss federal prosecutors said in a statement. The case was opened in September 2015 and ousted Blatter ahead of schedule as FIFA president. It also ended Platini’s campaign to succeed his former mentor. It centers on Platini’s written request to FIFA in January 2011 to be paid backdated additional salary for working as a presidential adviser in Blatter’s first term, from 1998–2002. Blatter told FIFA to make the payment within weeks. He was preparing to campaign …