Barcelona midfielder Pedri's season may be over after the La Liga club said on Friday that the Spaniard had suffered a thigh injury, giving no timeline for his return.

Pedri has been a crucial cog in Barca's midfield but coach Xavi Hernandez was forced to take the 19-year-old off at halftime in Thursday's Europa League quarter-final defeat by Eintracht Frankfurt that eliminated the Spanish side.

"Tests carried out this morning have confirmed that Pedri has a rupture in his left biceps femoris. He is out and his recovery will determine his availability," Barcelona said in a statement.

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Pedri, who made over 50 appearances in his debut season with Barca, agreed a new contract in October until 2026 which included a release clause of 1 billion euros ($1.08 billion).

Barca, which is out of all cup competitions, is second in La Liga -- 12 points behind the leader Real Madrid but with a game in hand.