Tottenham boss Mauricio Pochettino declared all eyes are on Barcelona after Spurs cruised past Leicester.
Son Heung-min and Dele Alli struck to clinch a 2-0 win at the King Power Stadium on Saturday night.
Harry Kane was rested and played just the final 16 minutes as Pochettino kept him fresh for Tuesday's crucial Champions League clash at the Nou Camp.
Victory lifted Spurs up to third in the Premier League, six points behind Liverpool.
But Pochettino is now focused on staying in Europe, with Tottenham second in Group B and locked on seven points with Inter Milan, who play PSV Eindhoven on Tuesday.
"Now it allows us to start thinking about Barcelona," he said. "You never know in football until you play.
"It will be a massive game, they have qualified for the next stage but in the Champions League no-one is going to give a present.
"We need to win and deserve to win. The mentality is going to be 200 per cent to try to win. We are going to arrive in the best condition, Barcelona are one of the best teams in Europe."