Barcelona are going to win against Osasuna because Osasuna are not in their best form, while Barcelona's current performance in the La Liga competition – I don’t think there is any team in La Liga that can easily bring Barcelona down at the moment.
Since Barcelona are going play with weak team which is Osasuna that’s why you’re having hope of them that they will find the game to win easily, as although that the team are not in good form by now, but I want you to remember that a weak teams always bring a big surprise against the strong; so stated that you don’t think they will be a teams that can bring down Barcelona at this moment, I think is a wrong statement. Because even Real Madrid alone are enough for them to bring them down, with the current performance of Real Madrid.
Barcelona being at the top of the standings is another motivation for them to hunt for a win in this match so they can secure more points to make their position stronger, and Real Madrid are coming near to them, and they must chase more wins to secure their position well and more points to give Real Madrid enough gaps in what they currently need at the moment.
For a team to being in the top of the standings not mean that they win against every of their opponents, we all understand being in a top table is another level of big achievement since it will give enough motivation and that how they will also be hope for themselves to win every of their matches, but if thought there try to hurt for a winners: so that they can give Real Madrid enough gaps points it will never work. Because Real Madrid are already share a points with them, so know matters how they chose wins once they turn they will see Madrid behind them.