Newcastle manager Eddie Howe accepts he will be asked about the club's Saudi Arabian majority owners but says his "specialist subject is football".
He said on Wednesday: "Football is what I know and what I've trained to do.
"As soon as I deviate from that into an area where I don't feel qualified to have a huge opinion, I think I go into dangerous ground."
Newcastle were taken over in October by a Saudi Arabian-backed consortium.
The country's Public Investment Fund (PIF) - of which Saudi Crown Prince Mohammed bin Salman is chairman - has an 80% stake in the club.