Ochieng does not advocate the weavers' use of hyacinth, because transporting it from the lake to their homes could help the plant spread.

CNN: Flower power threatens Kenya's Lake Victoria

But Martins hit the winner in the 83rd minute when he swiveled and struck his shot past Kenya goalkeeper Willis Ochieng and into the net.

CNN: Egypt secure dramatic playoff

Tunisia, who forced a crucial draw in Nigeria in the previous round of matches, made a perfect start when Jomaa heading past goalkeeper Willis Ochieng with barely a minute played.

CNN: Late goal keeps Super Eagles in finals race