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Barcelona take on Sevilla on Sunday evening at the Estadio Sanchez Pizjuan, a stadium that midfielder Denis Suarez - who spent one year on loan at the Andalusian club - has labelled one of the most challenging to visit in the country.

Although the Blaugrana won there in this season's Supercopa de Espana, they have not left there victorious in the league in the past two seasons, losing 2-1 last year and drawing 2-2 the season before.

"The [Estadio Sanchez] Pizjuan is one of the most difficult stadiums in LaLiga," the 22-year-old said in an interview with the Catalan club's official television channel.

"Sevilla have still not lost there this season in Europe or in the league."

Discussing how special it will be to return, Suarez pointed out that he still has many friends at the club where he spent the 2014/15 campaign.

"The year I spent at Sevilla was my first season of top-flight football," he said.

"Some teammates, directors and physiotherapists from that incredible year, in which we won the Europe League, are still at the club, so it will be special to return."

Suarez also spoke of the tactical changes he has seen since Sevilla made the summer switch from Unai Emery to Jorge Sampaoli.

"Sevilla is a team that has changed a lot and this current team is nothing like the Unai Emery version," he explained.

"This year, with a new coach, they have changed a lot.

"They come out strong in the first 10 to 15 minutes to pressure, as we already saw in the Supercopa match.

"Now the team is even more prepared [than it was in the Supercopa] given that they've had more weeks together.

"The key for us will be to keep control of the ball."

Finally, the young midfielder spoke of his joy at being back at the Catalan club, even though he enjoyed his time at Sevilla and Villarreal.

"[Barcelona] is where I have always wanted to be," he said in the interview.

"I am enjoying it a lot and I hope to be here for many years."

Sunday night's heavyweight clash kicks off at 20:45 CET.