Barcelona failed to reach the last 16 in the last two seasons, so this is the perfect season to expect them to return to the last 16. The match will be even more difficult in the knockout round, especially if both teams are strong teams from their respective groups.
Facts about Barcelona, they are not competent when it comes to elite competitions, always playing like some random average team but when it comes to La Liga, their performance is outstanding and incredible, they're ranked #1 favorites to lift the domestic league trophy. This is the exact ratings that Real Madrid utilized to outperformed the blaugrana. However this current UCL might turn out to be different for them. Barcelona made mistakes in the past, they looked forward to correcting them because Xavi Hernandez keen on improving his team's performance and setting a good reputation.