Mohamed Bin Hammam, president of the Asian Football Confederation, has dropped a new hint that he may challenge Sepp Blatter for the top role at Fifa.

Bin Hammam, from Qatar, has said there should be competition for the post.

He said on his Facebook account: "Competition is the best way to make the organisation vibrant and alive. Competition is good for the organisation, whether president or any other posts."

The deadline to announce a challenge is the end of March and Bin Hammam is in a powerful position with Qatar due to host the 2022 World Cup finals.

Although Bin Hammam was not officially part of the bid, he offered tacit support.

In January he said he thought the time had come for a change at the top of Fifa saying Fifa "needs lot of improvement".