I dont see it on Drudge either, but it’s on a Nevada local CBS web page, which cites Drudge as the source.
http://cbs5.com/national/oj.simpson.beating.2.1355491.html
Google has it but not on DRUDGE.
Now they are denying it.
Officials Deny O.J. Simpson Prison Beating Rumors
http://cbs5.com/national/oj.simpson.beating.2.1355491.html
from your link..
Internet rumors on Monday that O.J. Simpson was hospitalized after being attacked in prison appeared to be untrue.