Real Madrid began the 2026-27 UEFA Champions League with a 2-1 victory over Inter on Tuesday as Jose Mourinho marked his return to the competition with a win against his former club.

Meanwhile, at Estadio do Dragao, Manchester City opened their campaign with a 2-0 victory over Porto, with Erling Haaland scoring twice to become the club's joint-top scorer in Champions League history.

Real Madrid 2-1 Inter

Mourinho's side made the most of Inter's defensive errors to take a 2-0 lead before the Italian side pulled one back and threatened an equalizer late on.

Kylian Mbappe opened the scoring in the 14th minute after Inter defender Yann Aurel Bisseck failed to control the ball, allowing Brahim Diaz to pounce and set up the France captain for a clinical finish.

Real Madrid doubled their advantage nine minutes later when Inter goalkeeper Josep Martinez took too long to clear a back-pass from Benjamin Pavard. Federico Valverde closed him down, got a touch on the ball at his feet, and sent it rolling into the empty net.

Inter continued to create chances, but Madrid goalkeeper Thibaut Courtois made several important saves to preserve the two-goal advantage.

Madrid also had opportunities to extend their lead, with Martinez recovering from his first-half error to make a series of excellent saves.

Jude Bellingham was denied from close range in the 58th minute, while Martinez also kept out a shot from Mbappe eight minutes later.

Inter pulled one back in the 77th minute when Carlos Augusto met Lautaro Martinez's ball across the face of goal and side-footed home.

Inter pushed for an equalizer late on, but Courtois made another fine save from Henrikh Mkhitaryan's deflected effort as Madrid held on for victory.

Porto 0-2 Manchester City

Manchester City opened Enzo Maresca's Champions League tenure with a comfortable 2-0 victory over Porto, controlling possession and creating more chances while the hosts managed five shots without testing Gianluigi Donnarumma on target.

City created several chances in the first half, but Porto goalkeeper Diogo Costa kept the score level with a string of impressive saves, including efforts from Haaland and Rayan Cherki.

Haaland broke the deadlock shortly after halftime, heading home a deft cross from Enzo Fernandez after Cherki had kept the attack alive.

Porto struggled to create a response, with Alan Varela curling an effort just wide of the far post in the 57th minute.

Haaland sealed the win in stoppage time, meeting Rayan Ait-Nouri's cutback with a first-time finish from just outside the six-yard box.

The goal was Haaland's 36th in the Champions League for Manchester City, making him the club's joint-top scorer in the competition alongside Sergio Aguero.

Fernandez came close to a third for City in the fifth minute of stoppage time, first sending a free-kick narrowly wide before Costa saved his low effort. (AA)