Former top football official Chuck Blazer, whose evidence to US investigators helped trigger the FIFA corruption scandal, has died, his lawyers say.

FIFA on Thursday bans for life Chuck Blazer, a central figure in the corruption scandal that has engulfed world football, for taking millions of dollars in bribes.

Former Fifa vice president Jack Warner has said in a TV address that he will reveal all he knows about corruption at the world football body.

While Fifa continues to reel from "a storm" of damaging corruption allegations, 209 member associations will decide on Friday whether to give Sepp Blatter a fifth term as president.