epa05281843 Liverpool's German head coach Juergen Klopp gives instructions to his players during the game against Villarreal CF during the UEFA Europa League semi final, first leg soccer match between Liverpool and Villarreal CF played at El Madrigal stadium in Villarreal, eastern Spain, 28 April 2016. EPA/JUAN CARLOS CARDENAS

epa05281844 Villarreal CF's Congolese striker Cedric Bakambu (R) fights for the ball with Brazilian midfielder Lucas Leiva (L) of Liverpool during the UEFA Europa League semi final, first leg soccer match between Liverpool and Villarreal CF played at El Madrigal stadium in Villarreal, eastern Spain, 28 April 2016. EPA/JUAN CARLOS CARDENAS