Barcelona have a chance of fighting back from a three-goal deficit in Wednesday’s Champions League last-16 second leg with Paris Saint-Germain as long as the club’s all-time top scorer Lionel Messi is in form, coach Ronald Koeman said on Tuesday.

Barca were beaten 4-1 at home and no side has ever overturned a three-goal deficit in an away leg of the Champions League.

“If Leo is capable of playing one of his best games, everything is possible. He can decide a game at any moment,” Koeman told a virtual news conference on Tuesday.

“But he can’t be the only one at the top of his game, everyone needs to be.”

Barca staged the greatest comeback in European Cup history when they overhauled a 4-0 defeat away to PSG in a last-16 tie in 2017 by winning 6-1 win at Camp Nou.

Koeman admitted that his side’s task at the Parc des Princes was even harder than four years ago. “It’s always harder to come back from 4-1 away than 2-0 at home but nothing is impossible.”

Barca are missing two key centrebacks in Gerard Pique and Ronald Araujo. PSG’s Neymar has failed to recover from a thigh injury and will not face his former club.

Klopp confident

Liverpool have lost eight times since January to drop from the Premier League summit to eighth in the standings and Juergen Klopp’s side are looking to rediscover their best form when they meet RB Leipzig who they lead 2-0 from the first leg.

Klopp said he was confident of turning things around in Europe.

“Two things (give me faith in the Champions League), the quality of the boys and football in general,” he said.