Barcelona fielded their best squad and it is inseparable from their target to be able to get full points to maintain their position at the top of the standings and maintain the distance with their two rivals who are currently competing for the La Liga title this season, so I do not doubt that they will win the match against Osasuna.
I am very sure that Barcelona will be able to play the match later easily, because they are playing at home and also overall Barcelona's quality is slightly better than Ossuna.
Only a few players were dropped but that was because of the international break yesterday but they are still going strong for now, even at the time of writing Barcelona are 2 goals ahead now.
Osasuna is no longer a tough opponent, while Barcelona is on fire, surely they will take full points in this match.
No wonder the bookies give odds of 1.24 because it is predicted to win easily.