Everton's season, like their search for a manager, continues to drift as an insipid display brought a 5-1 home Europa League home thrashing by Atalanta.
AC Milan were made to wait for confirmed qualification from the Europa League group stage after being held to a 0-0 draw in a mediocre game at AEK Athens.
Arsenal qualified from the Europa League group stage despite being held to a 0-0 home draw by Red Star Belgrade, with rivals BATE Borisov being thrashed 5-2 in Cologne.
Managerless Everton crashed out of the Europa League with two Group E games left to play as they were beaten 3-0 at Lyon.
Mario Balotelli gave Nice an early lead but it was not enough to prevent Lazio from emerging convincing 3-1 winners at the Stade de Nice.
Everton boss Ronald Koeman was forced to endure more disappointment as Lyon consigned his side to an ill-tempered defeat and more Europa League misery.
Olivier Giroud scored a stunning winner as a much-changed Arsenal side saw off 10-man Red Star Belgrade in their Europa League clash.
Theo Walcott scored twice and Olivier Giroud notched his 100th Arsenal goal as the Londoners secured a second successive Europa League win, triumphing 4-2 at BATE Borisov.
AC Milan lost a 2-0 lead at the San Siro but found an injury time goal to earn a 3-2 win over Croatian champions Rijeka in the Europa League.
Everton's poor start in the Europa League continued as they were held to a 2-2 draw at Goodison Park by Cypriot outfit Apollon Limassol, who finished the game with 10 men.
Arsenal came from behind to beat Cologne in their delayed Europa League opener against a backdrop of crowd trouble at the Emirates Stadium.
Everton produced another hugely disappointing display as they were beaten 3-0 by Atalanta in their Europa League Group E opener in Reggio Emilia.
Andre Silva scored a hat trick as AC Milan eased to a 5-1 victory over Austria Vienna in their Europa League group-stage opener.
Arsenal have been drawn alongside BATE Borisov, Cologne and Red Star Belgrade in the Europa League group stage.
AC Milan eased into the Europa League group stage with a 1-0 win over Shkendija on Thursday, though the result was in little doubt after the Rossoneri won the first leg 6-0 a week ago.
Gylfi Sigurdsson marked his first Everton start with a spectacular goal to help put Ronald Koeman's side into the group stages of the Europa League after a 1-1 away draw with Hajduk Split.
Everton play Croatian side Hajduk Split in the Europa League playoff round, while AC Milan have been drawn against Macedonian side Shkendija.
AC Milan are through to the Europa League playoff round after beating Universitatea Craiova 3-0 on aggregate following a 2-0 second-leg win in the third qualifying round on Thursday.
Dominic Calvert-Lewin's calm finish kept Everton's bid for Europa League qualification on course as Ronald Koeman's men edged MFK Ruzomberok 1-0 in Slovakia.
AC Milan's offseason spending spree paid a quick dividend when new signing Ricardo Rodriguez scored in a 1-0 win at CSU Craiova.
Wayne Rooney's Everton return threatened to turn into embarrassment before captain Leighton Baines struck to give his side a slender first-leg lead in their Europa League third qualifying round clash with Ruzemberok.
Ajax manager Peter Bosz was left unimpressed by Jose Mourinho's Manchester United in the wake of the Premier League side's 2-0 Europa League final triumph on Wednesday, though he admitted his side were deserved losers on the night.
Ander Herrera has admitted it was difficult for the Manchester United players to train in the build up to the Europa League final after the terrorist attack that devastated Manchester on Monday.
Jose Mourinho has labelled Manchester United's Europa League triumph as "the most important trophy" of his career, while adding he was happy to call time on a season that was perhaps his most difficult as a manager.
Manchester United pulled together in their city's time of darkness, showing no little skill and spirit to overcome Ajax and win the Europa League.
Ajax secured a place in their first European final for 21 years after surviving a huge scare in Lyon.
Manchester United are just one win away from Champions League qualification after booking their place in the Europa League final with a 1-1 draw on the night and 2-1 aggregate victory over Celta Vigo.
Marcus Rashford's splendid free kick secured Manchester United a hard-fought win at Celta Vigo to edge Jose Mourinho's men closer to the Europa League final.
Bertrand Traore scored twice as Ajax ran out comprehensive 4-1 winners in a pulsating Europa League semifinal first-leg clash against Lyon at Amsterdam Arena.
Manchester United will play Celta Vigo in the Europa League semifinals, with Ajax playing Lyon in the other tie.
Alexandre Lacazette's first-half goal gave Arsenal a 1-0 win over FK Qarabag in Europa League Group E action on Thursday.
Olympiakos pulled off a stunning 3-1 Europa League win over AC Milan that put them into the round of 32 and sent the Italians crashing out as the remaining places in the knockout stage were decided on Thursday.
Table-toppers Chelsea drew 2-2 at Vidi in their final Group L in the Europa League on Thursday.
Chelsea made it five wins in five tries in the Europa League with a convincing 4-0 win against 10-man PAOK at Stamford Bridge on Thursday.
Arsenal maintained their three-point lead atop Europa League Group E on Thursday with a 3-0 win against Vorskla.
AC Milan came from behind before stepping on the gas to pull away from F91 Dudelange for a 5-2 Europa League win on Thursday.
Arsenal qualified for the Europa League knockout stage with a 0-0 draw against Sporting at The Emirates, although striker Danny Welbeck was carried off on a stretcher in the first half with a serious ankle injury.
AC Milan and Real Betis took a step towards qualifying for the Europa League knockout stage with a 1-1 draw in Group F on Thursday.
Olivier Giroud ended his drought by scoring the only goal as Chelsea won 1-0 at BATE Borisov on Thursday to clinch a place in the knockout stage of the Europa League with two group games to spare.
Arsenal and Chelsea were among seven teams to reach the Europa League knockout stage on Thursday, while last year's runners-up Olympique de Marseille were eliminated at the group phase.
Ruben Loftus-Cheek scored three goals as Chelsea dispatched BATE Borisov 3-1 in Europa League action on Thursday.
Real Betis stunned AC Milan with a 2-1 win at the San Siro in Europa League group play on Thursday.
Danny Welbeck's goal in the 77th minute was enough for Arsenal to get a 1-0 win over Sporting CP in Europa League action on Thursday.
Sevilla suffered a shock defeat by Russians Krasnodar, going down 2-1 in Europa League Group J.
Ten-man Celtic threw away an early lead to succumb to a 3-1 defeat to Red Bull Salzburg in Austria.
Alvaro Morata provided the lone goal in Chelsea's 1-0 win over Vidi in Europa League group-stage action on Thursday.
Emile Smith Rowe scored his first career goal in Arsenal's 3-0 win over FK Qarabag in Europa League group-stage action on Thursday.
Substitute Patrick Cutrone netted twice in nine minutes to lift AC Milan to a 3-1 comeback win at home to Olympiakos in Europa League group-stage action.
Arsenal's superb form continued into the Europa League as they thrashed Ukrainian side Vorksla Poltava 4-2 on Thursday.
Gonzalo Higuain's deflected effort in the 59th minute sealed a 1-0 victory for AC Milan over Luxembourg side F91 Dudelange on Thursday night in Europa League action.
Chelsea's Europa League campaign kicked off in style with a 1-0 win at PAOK Salonika on Thursday.
Leigh Griffiths made the difference for Celtic in their Europa League opener, coming off the bench to score a late winner against Rosenborg.
Burnley's European adventure came to an end on Friday as the Premier League side crashed out of the Europa League playoff round with a 1-1 draw against Olympiakos.
Celtic were held to a 1-1 draw by Lithuanian side Suduva Marijampole in the first leg of their Europa League play-off at the ARVI Futbolo Arena.
Antoine Griezmann struck twice as Atletico Madrid powered past Marseille to lift their third Europa League title in nine years.
Atletico Madrid advanced to the Europe League final 2-1 on aggregate after a 1-0 victory over Arsenal at the Wanda Metropolitano on Thursday.
Marseille scored a dramatic extra-time decider against Red Bull Salzburg to earn a Europa League final showdown with Atletico Madrid in Lyon on May 16.
If Arsene Wenger's Arsenal finale is to be a Europa League final in Lyon his side will have to do it the hard way after surrendering a well-deserved lead to draw against 10-man Atletico Madrid in the first leg of their semi-final.
Florian Thauvin put Marseille within touching distance of a place in the UEFA Europa League final with a controversial opener as his side beat Red Bull Salzburg 2-0 at the Stade Velodrome.
Arsenal will face Atletico Madrid later this month in their first appearance in the Europa League semifinals since 2000.