Nwabali, who has been impressive for Super Eagles in the AFCON so far, plies his trade for Chippa United in South Africa.
While speaking on Channels Television on Thursday, former Super Eagles international, Idah Peterside made known the threats.
Peterside said some fans have already told the Super Eagles shot-stopper not to return to Chippa United after the tournament.
He said, however, that there have only been threats, and no violence has been recorded.
It is said that some South Africans are not pleased that the goalkeeper prevented their team from making it to the finals.
Nwabali was excellent during the semi-final clash against the Bafana Bafana in the semi-final clash on Wednesday.
The goalkeeper stopped multiple attempts by South African players during regulation time before going on to save two spot-kicks during the penalty shootout.