Celtic would have to stump up £10 million to land Egypt's World Cup hero Haissem Hassan after his new transfer release clause was revealed.
The Parkhead club have been linked with a move for the Real Oviedo star as they try to beef up their squad for the new season.
Hassan provided a superb assist as the African nations took a stunning 2-0 lead against World Cup holders Argentina before a late collapse saw them controversially crash out.
Hassan will play his football in the second tier of Spanish football this season after Real Oviedo were relegated from La Liga.
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And that has meant his transfer release clause has changed from last season.
Hassan had a release clause of £16 million last term in Spain's top flight, but he has a clause in his contract that reduces that to £10 million if they were relegated.
Oviedo would also have to hand over 40 per cent of any transfer fee to his previous club, Villarreal, as part of his transfer deal two years ago.
The former French youth international played 37 matches for Oviedo last term, but managed only three assists.
