Roids didn't teach him to keep his hands up and not stand in front of people with no movement. He was beating the shit out of Browne until he got kicked in the face lol
Roids don't give people magic "can't be ko'd" chins.
Reem has been getting KO'd his whole career, even Roid Reem got KO'd by Sergei Kharitonov in MMA and Badr Hari in K1.
Reem just needs to quit being cocky and stop standing directly in front of people with no movement.