Barcelona coach Hansi Flick has urged his team to "make the impossible possible" as they face a daunting 4-0 deficit against Atletico Madrid in the Copa del Rey semi-final second leg.

• Barcelona needs to overcome a 4-0 first-leg loss to reach the Copa del Rey final.
• Key players include teenage star Lamine Yamal, who recently scored a hat-trick, and potentially Pedri Gonzalez returning from injury.
• Atletico Madrid coach Diego Simeone plans to make Yamal uncomfortable by forcing him into defensive duties.