BARCELONA (REUTERS, AFP) - Neymar's double helped Barcelona cruise to a 5-0 victory in the first leg of their King's Cup last 16 tie against Elche on Thursday to ease the pressure on coach Luis Enrique.

The Brazilian put the Catalan club ahead after 34 minutes when he fired home following a well worked move and after that the flood gates opened against the bottom side in La Liga.

Six minutes later Luis Suarez slotted past Przemyslaw Tyton after creating the chance with a delightful dummy as he allowed the ball to run through his legs before bearing down on goal.

Lionel Messi, who was the focus of attention following a reported bust-up with Enrique, looked very motivated from the start with some lively runs and converted a penalty just before halftime after Neymar was felled by defender Enzo Roco.

Jordi Alba made it 4-0 with a clinical finish from a Messi pass after 55 minutes and Neymar got his second foal with a deflected drive from distance five minutes later.

Shortly afterwards Neymar was substituted and made it clear he was unhappy as he shook his head when walking off.

"I don't speak about what happens in the dressing room," Neymar said when asked about a reported breakdown in communication between Messi and Enrique.

"I am happy with how the game went for me and the team. We took a big step forward. I am happy for Messi and Suarez too. Now we need to do the same against Atletico (on Sunday)."

Messi and Neymar were among eight changes made by under fire coach Enrique from the side that lost 0-1 at Real Sociedad on Sunday. Barca will face either Real Madrid or Atletico Madrid in the King's Cup quarter finals once they finish off Elche. Atletico hold a 2-0 first-leg lead after the home leg on Wednesday.