Barcelona coach Tata Martino admits their clash at Sevilla is a must-win.
Martino sees the match as "decisive".
"It is a decisive game, the trip to Sevilla is more relevant than ever," said Martino. "It's probably one of the hardest away games in the competition But there is still a long way to go in the league.
"Sevilla are a very intense team, they work hard, and are strong at home. It was hard for us to beat them earlier this season They work very hard on strategy."
