Because he adds nothing imo.so far at aleast.
He was the "almost guy" last year,improved abit later on.
This season,he's been awful imo,when we all expected him to take the next level step and progress he just gone backwards.
And not only injuries,but when he played he always so-so.
nothing special.not creative enough,not protecting the ball good enough(that and possession was his mission when came on vs Bayern and he lost it very easy).
Ofcourse he's not in a bad shape and situtation as Asa.
But still he's been pretty unreliable this year.
I'm sure he'll stay,but i just don't really trust him right now tbh.