Multiple Middle East consortiums are expected to confirm their interest in Manchester United by submitting proof of funds ahead of a potential takeover, sources have told ESPN.

Interested parties have been asked to prove they have the money to back up their proposals by Friday. Merchant bank The Raine Group, which is handling the process on behalf of current owners the Glazer family, have fielded enquiries about full takeovers and smaller investments.

The Glazers, who have controlled United since 2005, announced in November they were exploring "strategic alternatives" and sources have told ESPN they will assess offers before deciding whether or not to accept a full buy-out.

A takeover remains the most likely conclusion but an outside investment to help fund the development of Old Trafford has not been ruled out.

A consortium led by Qatar's sovereign wealth fund, Qatar Investment Authority (QIA), is expected to make an offer to take full control of United.