The Indomitable Lions are almost in the same situation they faced in Ghana 2008, when they were battered by Egypt in the opener, before thrashing Zambia 5-1 to go on and reach the final.

The Chipolopolo, however, showed they have something to prove in this tournament in the 1-1 draw with Tunisia last week.

Unfancied group leaders Gabon could make a shock quarter-finals berth if they replicated their feat and managed to beat the out-of-form Tunisia.

Cameroon

"We remain focused on winning this tournament, my players are calm, they are training well and we approach the game against Zambia with all the seriousness it deserves," said manager Paul Le Guen.

Team News: Midfielder Stephane M'bia could make his return from injury.

Star man: If Cameroon are to make any recovery from their opening day defeat, Samuel Eto'o should be the man to count on.

Player to watch: Achille Emana scored against Zambia in 2008 and will be looking to do it again in Angola.

Zambia

"Zambia are not scared of Cameroon, but I hope they do not recover their form against us. A lion is more dangerous when wounded," said French boss Herve Renard.

Star man: Captain Christopher Katongo is Zambia's main man.

Player to watch: Well-built striker Jacob Mulenga.

Tunisia

"All the teams in Africa are strong. The differences between the teams are minor and the results so far reflect that. But there is no problem we will progress from here," said Faouzi Benzarti.

Team News: Young midfielder Oussama Darragi is unlikely to feature after being substituted in the Zambia game with an ankle injury.

Star man: Prolific goalscorer Amine Chermiti.

Player to watch: Influential full-back Yassine Mikari.

Gabon

"It's important to continue the good work. Even if we finish second, we must make sure we qualify for the next round," said Frenchman Alain Giresse.

Star man: Hull City hitman Daniel Cousin was the hero against Cameroon and should be Gabon's target man once again.

Player to watch: Istres midfielder Paul Kessany is a key player for Giresse.