Anthony Joshua demands Joseph Parker fights him in Britain

The location of the highly-anticipated unification bout remains one of the key points to completing negotiations for the heavyweight division's super fight.

Joshua confirmed the fight deal was 95 per cent over the line for a clash early this year.

Parker's promoter David Higgins is having the contract examined by legal experts and is likely to fly to London late this week to sign it off.

Parker could join him in the UK for a press conference the following week.

Passenger 'duct taped to seat' on flight

The man, identified as Anil Tuvanc Uskanli -- a Turkish national born in 1991-- was subdued by crew members and passengers, including an off-duty Los Angeles police officer.

He is expected to face federal charges for interference with a flight crew, FBI special agent Paul Delacourt told reporters.

Investigators are still trying to determine the motive behind the disturbance.