The reason Sommers and Killingham haven't been taken out yet is obviously because Imu goes down with them.
I was starting to think Imu would still be able to fight even after they were defeated, but apparently it's already a struggle for him to keep fighting as things stand.
The backlash he will suffer is gonna be massive, and he's gonna keep getting his ass kicked by Luffy too...
This will be the first and last time we see him fight. He'll probably need a long time to recover his strength back in MJ, but BB will kill him before he gets the chance.