Today's match is a little easier to get a win for Rayo because their current opponent is only a weak team and Rayo will take advantage of the situation of playing at home to get 3 points.
But it is a little difficult to predict the Osasuna vs Barcelona match. This match should be an easy match for Barcelona, but unfortunately Ter Stegen had to suffer an injury and gave concerns when Osasuna could put up a fight.
So there is no other choice but to bet on the BTTS option because I am very sure Osasuna can at least 1 score.

I remain optimistic that Barcelona will easily take the 3 points against Osasuna, Ter Stegen absence is only at the goalkeeping position, so as long as Hansi Flick installs his main players there will be no drop in performance. This match can also be an opportunity for Szczęsny, Flick can give him 1 round, it will be very important for him to immediately play as a goalkeeper. The sooner the better to establish real cooperation and communication between fellow players on the pitch.