Robson had been expected to arrive in Abuja, the Nigerian capital, on Monday to sign a six-month contract but the former Middlesbrough coach said he is yet to make any firm travelling plans.
It is rare in American politics to arrive at a moment in which the debate revolves around the fundamental nature of American democracy and the social contract.
"Dr Jordaan has a contract with us also and obviously we would not be able to pre-empt what other issues will arrive after the tournament, " said Safa President Kirsten Nematandani.