Rudy is a solid player without a doubt, however he is the star of Hoffenheim. so he can fail at Bayern. yet, Gnabry is a gamble that most clubs would take. 8 m euros is nothing in today's conditions. strong player with good dribbling skills and finishing. l watched him at Rio, he was much better than Brandt or Goretzka. if he doesn't get injured, l'm waiting good things from him. but if l were Bayern, l'd sign Lemar, not Sanchez. in that case, they have to loan Gnabry. a team at Leverkusen level would be good for him. then, he can fight for one spot.
l think PSG is the team who needs Donnarumma the most.