The Newcastle striker says "it's going to take our best game" for Nigeria to beat the Americans in Saturday's friendly while his coach is optimistic that his players will do better... "It's going to be volatile," Ameobi said. "It's our last game before entering the World Cup so we have to be really hitting top form. The fact that they're at home makes for a great atmosphere. It's going to take our best game to beat them, and that's what we'll have to bring, that's what we want to do go into the World Cup on the back of a win. As the World Cup draws nearer, the line between low-key friendlies and competitive clashes can be blurred