Spanish boss Vicente del Bosque’s line-up for the opening game against Italy caused some consternation when he named a team without a single specialist striker in it.
However, the Euro 2008 and World Cup 2010 champions emerged with a point from arguably their toughest Group C game, and will now turn their attention to booking a place in the last eight by ending Ireland’s hopes of joining them.
Manager Giovanni Trapattoni has admitted he does not know what to expect from Del Bosque tonight, but Keane is confident he and his teammates will be prepared for all eventualities.
He said: “We will prepare for if there are six midfielders and if there are strikers also.
“The manager will have videos on both situations and I am sure we will be well aware of how to play against them.
“We know no matter who they play, it will be a tough ask because the players they have are world-class players, and they have probably six of the best midfielders in the world.
“Listen, it’s going to be tough, but we have to believe we can go into the game and get three points, and in the worst case scenario, we get a point.”