The cute news of Salah's injury is going to be a set back for Liverpool team and an advantage for others who are also top contenders for the Europa this season, even Leverkusen also have similar case with victor Boniface but I'm their case they have got just but a little dependence on victor than Liverpool does on Salah.
AC Milan is the only top team in the Europa currently with an even team because even Roma is currently having their own fair share of the whole issues as they are battling with the change of coach and trying to get along with their coach so the team gets back to their form, so it's very likely the round of sixteen will definitely going to be a bit though and maybe below expectations because the top teams at this point are having one thing or the other to battle with but then I still trust Liverpool and Leverkusen to be able to maintain their frame and get the best out of the Europa this season.
I think, about Salah injury it will greatly affect Liverpool's performance in the Premier League because the competition there is very hard. But for Liverpool's chance in the Europa League even without Salah, at least I am still confident that Liverpool and also about Bayer Leverkusen still will have a good chance. But indeed, with injuries wich experienced to key players like that, it is likely that the team will only focus on only one competition and yes, most likely they will only focus on the domestic league because the rotation is not working optimally. But for now, at least I still believe Liverpool and Bayer Leverkusen will still try their best to still get good results also in the Europa League.