yes...he has to tap or his arm gets broken
course, ive never seen anyone NOT tap when that happens...i wonder if the other guy just breaks the arm...??
http://my.break.com/content/view.aspx?ContentID=148192
here's a highlite vid of fedors (small)
the first guy rapes fedor with a near perfect slam...fedor wins about 10 seconds later (shown at the 55 second mark)
i read his only loss is cuz he got a nasty cut in the ring...a technicality