Ansu Fati is expected to return against Levante after an injury (as a sub). If this goes well, several reports say he could even be a starter v Benfica in the UCL (per @BlaugranesBarca on Twitter and several newspapers solely writing about FC Barcelona).
He is one of Barca's key attackers (sat with 5 goals in 10 games before injury). Based on when Barca exit the UCL, 3/4 goals could be enough to settle this bet. Braithwaite is out with injury and so is Aguero. He should rather be 2nd favourite behind Depay in my opinion. Unibet agrees and has this priced @ 4.50. Even if he doesn't start against Benfica, this bet holds value. There is of course risk attached to this, but this price is too good to overlook.