"The best team won, we struggled from the beginning and we couldn't deal with their long balls. Usually, you press the ball to win it, but this was different. They defended so deep and so well," City coach Pep Guardiola told the BBC.
Premier League leaders Manchester City turned on the style with a 3-1 win over Manchester United in their derby clash, on Sunday, leaving Pep Guardiola's unbeaten side two points clear of Liverpool.
Images from the Europa League matches played on Thursday
Arsenal are eighth, seven points adrift of fourth-placed Chelsea, while Norwich remain second from bottom.
France produced a scintillating show as they put memories of one of the most painful moments in their soccer history to one side by crushing Bulgaria 4-1 in a World Cup Group A qualifier on Friday.
Spain's Alvaro Morata scored a goal in each half as they beat a highly defensive Malta side 2-0 away on Tuesday to move top of their Euro 2020 qualifying group with two wins out of two games.
Sergio Ramos equalled Iker Casillas's record of 167 appearances for Spain on an emotional night at Sporting Gijon's El Molinon stadium, which paid tribute to the late Spain and Sporting forward Quini before kickoff.
News of all that's transpired on and off the football field
Coach Pep Guardiola was left thrilled after ManchesterCity revived their Champions League bid by beating his old club Barcelona 3-1 in a gloriously open Group C encounter at the Etihad Stadium on Tuesday.
Barcelona battled back from a goal down and scored twice in the second half to overcome hosts Borussia Moenchengladbach 2-1 in their Champions League Group C match on Wednesday despite the absence of the injured Lionel Messi.
Switzerland struck twice in quick succession to stun Euro 2016 champions Portugal 2-0 in a World Cup qualifier on Tuesday and hand them a first competitive defeat in two years under coach Fernando Santos.