easier for him to trap them in a cage? I think your confused because the fact its harder to stalk somebody was a major part of CroCop's lack of sucess, a ring has four corners and they allow you to back an opponent into one, a cage lacks corners which is much more difficult to control due to the fact that lateral movement is practically always an option.
"If you get hit and it hurts hit him back you not knocked out yet."-Joe Doerksen
The Toxic Terrors (FFL)
Demetrious Johnson*Eduardo Dantas*Emanuel Newton*Will Brooks*Michael Page