After 120 minutes of pure drama, magical moments and stunning performances, there is only one thing we know for sure: few will be sleeping in Milan tonight.
Last week’s first leg – which finished 3-3 – was incredible, but somehow this return match was even better.
Inter Milan started far the stronger of the two sides and raced into a 2-0 lead at half-time through Lautaro Martínez’s opener and Hakan Çalhanoğlu’s penalty.
Barcelona looked way off it in the opening 45 minutes and knew it needed something special in the second half to get itself back into contention – and that’s exactly what the Spanish giant produced.
In less than six minutes, Barça had leveled the scoreline through Eric García’s fine finish and Dani Olmo’s header, as the San Siro was stunned into silence.
Then, with the Blaugrana dominating the ball, the visitors thought they had scored a late winner when Raphinha fired a shot into the bottom corner of the net in the 88th minute.
That seemed to be it, there was no way Inter could muster enough energy to find another goal and Barça fans must have started looking at flights to the final in Munich.
But then, in the 93rd minute, Francesco Acerbi sent Nerazzurri fans into a frenzy after smashing the ball into the roof of Barcelona’s net to level the scores.
Acerbi, 37, was in tears and pointed to the sky after scoring his first ever Champions League goal as mayhem played out around him.
Extra-time then loomed for both sides, but it was Inter who got the better of it, spurred on by the home support.
The winning goal came in the 99th minute after brilliant hold up play by striker Marcus Thuram, who laid the ball off to Davide Frattesi in the box. The midfielder kept his composure to guide his shot into the corner of the net to send the Italian side into dreamland.