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Trent Alexander-Arnold has been praised by Thibaut Courtois and Xabi Alonso(Image: Chris Arjoon/Icon Sportswire via Getty Images)

Thibaut Courtois has admitted Trent Alexander-Arnold is "horrible" to face in training after he notched his first assist for Real Madrid.

Alexander-Arnold assisted Gonzalo Garcia's winner with an excellent cross as Real Madrid beat Juventus 1-0 in the Club World Cup on Tuesday.

And Courtois was not surprised to see the former Liverpool star delivering in a knockout match, with the goalkeeper praising his passing ability and revealing that he is a "nightmare" to go up against in training.

"I think he could have already had a few in these four games," Courtois told DAZN after the game.

But it keeps you on edge and keeps you working hard, trying to save them, to make him better and myself better."

Real Madrid boss Xabi Alonso also hailed Alexander-Arnold, branding him an "amazing player" but admitting he "needs time" to settle in.

He still needs time, but he's an amazing player," Alonso said.

READ MORE:What Real Madrid fans are saying about Trent Alexander-Arnold after Dani Carvajal speaks outREAD MORE:10 Juventus stars make same demand vs Real Madrid to perfectly sum up FIFA Club World Cup

"Crossing is his trademark; he's done 500 of those.

Everything takes time."

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Alexander-Arnold has started every Club World Cup game so far, but is now set to face competition from Dani Carvajal after he returned to the bench against Juventus after recovering from a serious knee injury.

"Trent has adapted phenomenally well, he has got on with everyone fantastically," Carvajal said when asked about Alexander-Arnold ahead of the game.

"He has been super friendly: when we have had an afternoon off, he has come with everyone to eat, he seems a very, very good lad.

Alexander-Arnold notched his first Real Madrid assist against Juventus(Image: Michael Regan - FIFA via Getty Images)

"He already knew Jude [Bellingham] but it's with everyone.