Redsand Canyon Being held down by gravity

Donovan stumbled forwards, just as he wanted.
Jaws flew for his shoulder, mostly grazing really. No holding on and flipping him to the floor.
So Derg was moving still, not wanting to give the man a second chance and drove for his rear leg this time, looking to unbalance him further.

If he could, then he should probably try and flip the man over. But did he have the strength for that?
The thoughts were fleeting in the moment, only tlasting the duration of Derg's attack.
What woud Donovan try now?