Ghana coach Avram Grant has cautioned his side ahead of the semi-final against Cameroon claiming it be a ‘’tough’’ battle between the two powerhouse in African soccer.

Black Stars will square off against the Indomitable Lions desperate for a win to secure qualification to the final as they seek to win their fifth title in Gabon and Israeli trainer insists the Cameroonians cannot be written off.

The Black Stars fought hard to defeat DR Congo 2-1 in the quarter-final on Sunday at the Stade D’Oyem to advance to the last four of the competition.

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The famous Ayew brothers Jordan and Andre scored the goals for the Black Stars.

“I saw the Cameroonians yesterday [Saturday] and they were very good, a very tough side," Grant told Pulse Ghana.

"In the group stage they played well and against Senegal they were very impressive. Senegal created more chances but i think Cameroon deserved to beat win the match.

"The semi final is going to be tough."

The match will be played on Thursday in one of the four largest cities in Gabon, Franceville.