Mohamed Bin Hammam believes Fifa has already decided to find him guilty of bribery allegations but has vowed to clear his name of any wrongdoing.
The Asian Football Confederation president yesterday began the fight to clear his name at a two-day hearing convened by Fifa's ethics committee in Zurich.
Bin Hammam, who had been set to run against incumbent president Sepp Blatter, has been suspended from all football activity since 29 May and will vigorously contest charges of attempting to bribe members of the Caribbean Football Union at a campaign meeting in Trinidad in May.
Bin Hammam, 62, published a blog on his website yesterday under the title "Justice will prevail", in which he labelled Fifa's evidence as "weak and unsubstantiated". The Qatari also called the evidence "flimsy" and, despite maintaining his innocence, believes Fifa seem likely to hand down a guilty verdict.