Harvey Elliott scored a late winner as an Alisson-inspired Liverpool snatched a dramatic 1-0 victory over Paris Saint-Germain in the first leg of their Champions League last-16 showdown.

Just 46 seconds after coming on, Elliott found the net with his first touch - and what was the Reds' first shot on target - in the 87th minute to give his side the advantage in the tie.

It was a real back-to-the-wall performance by Arne Slot's side, who thought they had fallen behind in the 20th minute.

Khvicha Kvaratskhelia neatly curled beyond Alisson, only for his effort to be ruled out for offside following a VAR review.

PSG continued to carry the greater threat throughout the first leg, with Alisson producing smart saves to deny Kvaratskhelia, Bradley Barcola and Ousmane Dembele, and keep the hosts at bay.

Yet, there was to be a late twist with just three minutes remaining.

Having absorbed all of their opponents' pressure, Alisson's long kick was won in the air by Darwin Nunez, who laid the ball off for Elliott to beat Donnarumma with a neat first-time finish.

Data Debrief: Alisson stars before Liverpool's late, late show

Luis Enrique's side suffered their first defeat in 23 matches across all competitions, and they will be wondering how that happened, having registered 27 shots on goal to their opponents' two and enjoyed over 70% of possession.

It was the second-most shots on record (from 2003-04) by a side in a Champions League knockout match in which they both failed to score and lost, behind only PSG, themselves, against Borussia Dortmund last season (30).

Skipper Marquinhos became the fourth Brazilian to start 100 Champions League games - after Roberto Carlos, Dani Alves and Thiago Silva - and the first to do so in the competition with a French club.

However, the hosts could not find a way past Alisson, whose nine saves were the most on record by a Liverpool goalkeeper in a single Champions League match.

Elliott then popped up with the second-fastest goal scored by a substitute in this season's competition, after Ademola Lookman netted just 35 seconds after taking the field against Club Brugge.

It was also the Reds' latest winning goal in a Champions League knockout game.