The international sports tribunal will today rule on Michel Platini's final appeal against a six-year ban imposed by FIFA and decide whether he can return as UEFA president.Platini was banned for "conflict of interest" over a suspect two million dollar payment authorised by former FIFA leader Sepp Blatter. Platini and Blatter have been the two highest profile figures to fall over the scandals that have hit FIFA.If the Court of Arbitration for Sport (CAS) upholds his appeal, Platini would return as UEFA president.Platini and Blatter have both denied any wrongdoing over the 2011 payment made without a contract for consulting work carried out a decade earlier.They say there was an "oral contract."Blatter is still under criminal investigation in Switzerland over the payment and other aspects of his management of FIFA.