EPA
Poland and Colombia are fighting for their first points of the World Cup.
They both came unstuck in the opening matches, losing to Senegal and Japan.
But the group remains open and a victory will put the winners in pole position to qualify for the last 16.
Colombia striker Radamel Falcao said: "We have two more games ahead and that means we still have the opportunity to progress to the next round. That gives us hope and it is in our own hands on the pitch. This team has shown it is mentally strong.
"It will be like a final. Each team will battle hard to keep the ball, and will close down the space for their opponents to operate in.
"Perhaps we won't make as many mistakes as we did before, because we all know this is a match that will determine who will continue in the World Cup."