The first good news for Flick is about the injured superstar player of Barcelona Gavi.
Gavi was having good days in Barcelona and he had good performances in the games for this team and considering his age, he couldn't have a shining future in Barcelona. But sadly he got injured hardly while he was playing for Spain during the last November, Just after that there was much news about his situation and he had to stay out for 8 to 10 months to get back in the good form again.
Good news?

Gavi will recover soon. He is expected to return in June, 30.
I think there is no something worrying about him because it looks fine. He also has a long contract (until 2026) with Barcelona. So Flick mustn't be afraid about him because he will stay i Barcelona for the next seaosn.