Atalanta
Frustrated AC Milan coach Paulo Fonseca accused referee Federico La Penna of not showing his side enough respect after they were beaten 2-1 by Atalanta in Serie A.
Revitalised Napoli face a demanding test when they welcome in-form Atalanta on Sunday hoping to solidify top spot in Serie A while second-placed Inter Milan host lowly Venezia.
But for Raya saving Mateo Retegui's 51st-minute penalty and then somehow springing across his goal to claw out the same player's headed rebound effort, Arsenal could have begun their group games with a damaging defeat.
The reigning Italian champions dominated throughout at San Siro where an own goal from Berat Djimsiti and stunning Nicolo Barella volley earned them a half-time lead. A brace from Thuram after the break sealed the win.
Uruguayan Federico Valverde put the European champions ahead after 59 minutes from close range and Mbappe fired the ball into the top corner from Jude Bellingham's pass to double the advantage nine minutes later.
No details of the deal were disclosed, but Italian media said that it was worth around 28 million euros ($30.57 million).
Bayer Leverkusen coach Xabi Alonso said his side will over time look back with pride on their European record unbeaten run but must use the pain of Wednesday's Europa League final defeat to spur them on for another final in three days time.
Ademola Lookman scored a stunning hat-trick as Atalanta beat Bayer Leverkusen 3-0 in the Europa League final on Wednesday to win just the second major trophy in their 117-year history and end the German champions' remarkable unbeaten streak.
Atalanta's Ademola Lookman, Matteo Ruggeri and El Bilal Toure all got on the scoresheet to send the Italians to their first Europa League final with a 3-0 win over Olympique de Marseille for a 4-1 aggregate victory on Thursday.
Atalanta will face record 14-times winners Juventus in the final on May 15 in Rome after Massimiliano Allegri's side qualified with a 3-2 aggregate win over Lazio despite a 2-1 defeat in the second leg of their semi-final on Tuesday.
Liverpool lacked tactical discipline against Atalanta on Thursday and fully deserved their 3-0 defeat in the Europa League quarter-final first leg match, manager Juergen Klopp said.
Inter Milan cruised to a 4-0 home win against Atalanta in Serie A on Wednesday, extending their lead at the top of the standings to 12 points as they edge closer to a 20th league title.
Needing four points from their final two games of the season, Milan stand on the brink of a first Serie A title since 2011.
Villarreal became the last team to reach the Champions League knockout stages.
The pressure was on Solskjaer after Saturday's 4-2 Premier League defeat at Leicester City.
This goal allowed Salah to share the record of Liverpool’s top scorer in the UEFA Champions League with the club legend, Steven Gerrad.
Gasperini was left with a mixture of regret and pride in his team after two late goals by Paris Saint Germain ended the Italian club’s Champions League dream.
Paris St Germain scored two late goals, including a stoppage-time winner from substitute Eric Choupo-Moting, to beat outsiders Atalanta 2-1.
Second-placed Atalanta moved up to 75 points with two games left to play.
Ilicic profited from some dozy defending to tap in the opener for the visitors during the first half, but Mandzukic equalised with 10 minutes remaining.