Gregg is perfectly correct. The player is Herbert Gregg - this was his only international.
That's me told. My apologies to Herbert Gregg.
One to look at here... It reports one less sub for Morocco but I'm not too concerned with that as multiple sources have different sub numbers. My concern is with the Zambia side as this reports 3 added subs, with Mbesuma, Kampamba and Nkausu as coming on off the bench instead of starting. It reports Elijah Tana, Jonas Sakuwaha and Clifford Mulenga as the starters instead, with Tana, Sakuwaha and Jonas Mulenga being the 3 added players subbed off.
Source: footballdatabase