Istanbul : Barcelona came from behind to thrash Galatasaray 4-1, while Arsenal scored three second-half goals in seven minutes to beat Lille 3-0 in the UEFA Champions League league phase on Tuesday, as both sides secured convincing victories on matchday two.
Aleksey Batrakov gave Galatasaray the lead in the 28th minute, but Joao Cancelo equalised for Barcelona in the 43rd minute.
Fermín Lopez put Barcelona ahead in the 50th minute with a header from a Lamine Yamal cross. Yamal then set up Anthony Gordon three minutes later to extend the lead, before substitute Karim Adeyemi scored in the 65th minute to complete the rout.
Meanwhile, Arsenal defeated French side LOSC Lille 3-0 in the UEFA Champions League league phase on Tuesday, scoring three goals in seven minutes in the second half to maintain their perfect start to the competition.
Jurrien Timber broke the deadlock in the 64th minute before Arsenal introduced Bukayo Saka, Martin Odegaard and Kai Havertz through a triple substitution.
Saka then set up Eberechi Eze for Arsenal's second goal in the 67th minute before scoring himself four minutes later after combining with Havertz.
Arsenal dominated proceedings with 53 per cent possession and registered 16 shots, including eight on target. Lille managed just four shots, none of which tested the goalkeeper.
Lille were unable to find a breakthrough against Arsenal's defence as the Gunners secured a comfortable victory.
Pablo Barrios and Ademola Lookman scored as Atletico Madrid beat Manchester United 2-0 in the UEFA Champions League on Tuesday.
Atletico needed less than a minute to open the scoring after Giuliano Simeone collected a long ball and set up Barrios to side-foot home.
Manchester United saw Bryan Mbeumo fire wide before Marcus Rashford came inches away from connecting with Lisandro Martinez's ball from the back.
Atletico's Johnny Cardoso saw his effort from the edge of the area ruled out after VAR detected an earlier handball by Marcos Llorente, while Julian Alvarez hit the post at the start of the second half.
Manchester United's hopes suffered a major setback in the 74th minute when Leny Yoro was shown a red card.
Lookman doubled the lead five minutes later, scoring from close range after goalkeeper Senne Lammens had saved Jonathan David's initial effort.
Villarreal beat Napoli 3-1 after coming from behind.
Napoli took the lead in the eighth minute when Amir Rrahmani scored from a loose ball in the home penalty area.
Villarreal responded well, with Georges Mikautadze slotting home from a narrow angle in the 23rd minute. Santiago Mourino put Villarreal ahead three minutes later after collecting the ball outside the penalty area and scoring with a powerful shot.
A thumping effort from Tani Oluwaseyi in the 86th minute sealed Villarreal's first Champions League win since its quarterfinal victory over Bayern Munich in April 2022.
Bayern Munich was held to a 3-3 draw by Viking in Norway.