Xavi was disappointed by Barcelona's failure to win "moments" after they were romped by Clasico rivals Real Madrid 4-0 at the Camp Nou to fall to a 4-1 Copa del Rey semi-final aggregate defeat.

An Eder Militao own goal in the first leg at the Bernabeu meant Barca headed into Wednesday's return match on home turf with a one-goal advantage.

But a strong first half by Barca ended with a short period of play that would prove crucial, as Thibaut Courtois made a brilliant save to deny Robert Lewandowski before a sweeping counter-attack ended with Vinicius Junior levelling the tie.

Madrid then sealed their progression with a brilliant second half, as Karim Benzema's hat-trick put the 31-time winners out and set Carlo Ancelotti's men up to meet Osasuna in the final on May 6.

Xavi was left frustrated by his team's failure to match their first-half display, telling Movistar+: "It is a difficult night to digest. This is football.

"You have to compete better. We have competed well until 1-0. They are moments that we have to stop. We could have also stopped the 2-0 moment. In short, they are details that we have to control.

"In the first half we were very good, but that's what I said: football is about moments and we didn't take advantage of them.

"When football is so even, you have to take advantage of the moments. We didn't do it in the first half and they did in the second. They have been superior, no excuses."

Xavi credited Madrid for their excellent second-leg display, saying: "I already said yesterday that Madrid were favourites.

"We cannot argue that they are a great team. They are the LaLiga and Champions League champions and they do not forgive. 

"When you don't kill Madrid, they kill you."

Despite the elimination, Xavi's men hold a 12-point lead over Madrid at the top of LaLiga, and he is hoping his team can put this setback behind them to kick on and claim the title.

"We had a very bad second half, but we have to get up," he said. "Tomorrow we will get up with all the hope to beat Girona.

"It is a tough result, but we have to focus on the league."