Arsenal's Arsene Wenger on the sidelines during the Europa League semi-final second leg v Atletico Madrid on Thursday

Diego Costa killed Arsene Wenger's last hope of a glorious Arsenal farewell as his goal sent Atletico Madrid through to the Europa League final. Wenger's 250th European fixture with Arsenal also proved to be his last, decided by a ruthless finish from Costa, who delivered a display defenders must have nightmares about. Arsenal's defence, fragile and nervous throughout, were susceptible and this 1-0 defeat, 2-1 on aggregate, means Wenger's final season in charge will end with his team missing out on Champions League qualification for a second year in a row.