Sevilla coach Unai Emery believes it will be a big ask for the Europa League champions to reach the final despite their slender advantage over Shakhtar Donetsk.
BBC: Sevilla vs Donetsk Shakhtar
Shakhtar Donetsk's players (L) and Sevilla's pose with young fans before the UEFA Europa League semi-final second leg football match Sevilla FC vs Shakhtar Donetsk at the Ramon Sanchez Pizjuan stadium in Sevilla on May 5.
