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Parker showed tremendous courage going back with the flight of the ball and taking the mark, before Brown left the ground and braced for a front-on bump coming the other way.
Brown will almost certainly be suspended over the incident, with the AFL cracking down on players who choose to bump in an unsafe manner.
Take a look at the incident below.
Nathan Brown has gone into the umpires' book following this late hit on Luke Parker #AFLSwansPies http://t.co/Epc7MxPp7m
— AFL (@AFL) August 14, 2015