Jose Peseiro was unveiled on Sunday as the new coach of Egyptian giants Al Ahly but walked straight into a controversy over his appointment at his first media conference
The 55-year-old Portuguese, formerly in charge of the Saudi Arabia national team, replaces Fathy Mabrouk but has met with some fan resistance over an allegedly poor record.
"I do not understand why you doubt my ability to coach Al Ahly. Do you know the names I've trained before?" he asked reporters in Cairo on Sunday.
"I've worked with Zinedine Zidane, Luis Figo, Roberto Carlos. Do you think I can't handle Ahly?"
Peseiro was assistant coach at Real Madrid for the 2003-2004 season before embarking on a head coach career at clubs such as Sporting Lisbon, Panathinaikos, Rapid Bucharest and Sporting Braga.
He was most recently sacked by Al Wahda of the United Arab Emirates in February.
No details have been given of Peseiro's contract terms with the Cairo club.
Al Ahly are African football's most successful club with a record 80 African Champions League triumphs and 11 other continental titles.
Mabrouk was sacked after the club lost in the semi-finals of the African Confederation Cup to South Africa's Orlando Pirates this month.