There were no difficulties with the English clubs for Barcelona in the past few years, especially against Arsenal and Manchester City. They tried to stand against the Catalans but anyway Barcelona kicked them off. Now Arsenal have extremely little chance to qualify into the Round of 8. The level of these two teams are different. Barcelona are on fire with 32 games without losing. All their players are fit with just one (Arda Turan) suspended. Ivan Rakitic, Sergio Busquets and Gerard Pique were rested in the last game of La Liga against Las Palmas. All named are the key players and now they are highly energetic to face Arsenal. The attacking trio of Barcelona are in their top form too.
I have no doubts backing Barca to qualify into Round of 8. Arsenal can show their character at home and get a draw, but we all should understand what will happen at Camp Nou. Arsen Wenger played several matches against Barcelona and he used some different attacking tactics in all of them. And Barcelona should win in such a wide-open game. With all that, I think that Arsenal can offer a battle in the first leg. Luis Enrique will play with Ter Stegen in goal and the German can make mistakes. Alexis Sanches will be highly motivated against his former team. And all other attacking players are fit, except Santi Cazorla. So both teams can surely score in the upcoming game.