Only 10,000 fans will be allowed into the Air Defense Stadium for next Tuesday's Brazil 2014 World Cup playoff return leg between Egypt and Ghana in Cairo.
The rest of the 20,000 capacity will be filled by the security personnel on duty.
This directive has been clearly spelt out in the detailed security plan for the decisive 19 November clash.
Authorities do not want to take chances at all after skirmishes between fans and police outside a stadium in Cairo on Sunday before Egyptâ€™s Al Ahly beat South Africaâ€™s Orlando Pirates in the final of the African Champions League.
No injuries were reported, although police fired tear gas at hundreds of rioting Al Ahly fans ahead of kickoff outside the Arab Contractors Stadium.
FIFA General Secretary Jerome Valcke wrote in a letter to the Ghana FA that permanent police escorts for players and officials, and ''sufficient'' security at team hotels and at training sessions.
''The security plan has been designed in order to ensure total protection for all the delegations (Ghana, Egypt and Fifa) from arrival up to departure,â€ Valcke wrote in his letter, according to the GFA.
Ghana won the first leg 6-1 on aggregate and are likely to qualify for the World Cup in Brazil.