Comoros are accusing Zimbabwean referee Norman Matemera for denying them a rare and historic win over Ghana after he disallowed a clean goal.

Substitute Ali M'Madi profited from a ricocheted ball and sneaked in from behind to head past Ghana goalkeeper Razak Brimah.

But referee Matemera whistled for an offside much to the dismay of the partisan home fans inside the Stade Moroni.