Only the Champions League can save Barcelona from what has been a problematic season for the club.

They relinquished the La Liga title in miserable fashion to rivals Real Madrid, handing over the trophy on the same night they lost at home to Osasuna.

So their attentions will turn to Europe, where Quique Setien must somehow inspire his group of underperforming stars to glory.

Even Lionel Messi has doubts about that, though, admitting that they won’t get past Napoli in the round of 16 unless changes are made.

"I said a while ago continuing as we were it would be hard to win the Champions League and it's not been enough to win La Liga," he said, per Sport.

"And if we don't react and make changes we will not beat Napoli." 

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It was quite a startling statement from Barcelona’s captain. And one that needed to be made.

The level of disappointment in Barcelona’s season can be summed up by Sport’s player ratings for the season.

Every player has been rated out of 10 and the highest grade is a seven, given to Messi.

Sport added short statements about each player as well.

Ousmane Dembele: n/a - “Another victim of injuries.”

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Carles Alena: n/a - “Played out on loan at Betis where he was good.”

Rafinha: n/a - “Only played three weeks before going to Celta.”

Todibo: n/a - “Never in Valverde’s plans, on the market.”

Wague: n/a - “Went off to Nice, just playing one game.”

Collado: n/a - “Five mins as a sub. No chances really.”

Arthur: 3 - “Now belongs to Juve, never made the difference.”

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Samuel Umtiti: 3 - “Still hampered by injuries, far from his best.”

Ivan Rakitic: 4 - “Was not the determining player he has been previously.”

Junior Firpo: 4 - “Not real competition for Jordi Alba.”

Gerard Pique: 5 - “His 12th campaign and he was excellent. 15 yellows a negative.”

Sergi Roberto: 5 - “Versatile, helped the team wherever he was needed.”

Luis Suarez: 5 - “Got 16 goals which is good.”

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Sergio Busquets: 5 - “With Pique, 12 seasons, still hard to replace.”

Ronald Araujo: 5 - “The Uruguayan has had a few gams and been solid.”

Neto: 5 - “Barely featured, has been fine - the bench is not a place for him.”

Antoine Griezmann: 5 - “Not as good as can be expected for 120 million euros - 9 goals, 4 assists.”

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Martin Braithwaite: 5 - “Brought intensity and enthusiasm but didn’t get a lot of chances.”

Clement Lenglet: 5 - “A clear starter, a defender for years to come.”

Jordi Alba: 5 - “Five assists, good pace up the left.”

Nelson Semedo: 5 - “Hit and miss, especially in defence, opens up the pitch in attack.”

Carlos Perez: 5 - “Good breakthrough but surprisingly went to Roma.”

Ter Stegen: 6 - “Despite letting in 36 he was excellent and consistent. Gave two assists.”

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Ansu Fati: 6  - “Hunger to succeed, speed, talent, exciting future.”

Riqui Puig: 6 - “Same. Pure Barca DNA, lots of potential.”

Arturo Vidal: 6 - “Committed, gave it all, and scored a few goals too.”

Frenkie de Jong: 6 - “Exciting debut season, could be crucial in next decade.”

Messi 7: - “Leader, top scorer and assister, kept the fight until the end but can’t do it all himself.”

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So nobody managed higher than a seven.

You could say that’s harsh on Messi, who finished the season with most goals and assists in La Liga.

But even so, it’s hard to argue with much else.

Messi was tasked with carrying his teammates for the entire campaign.