(This story appeared in today’s edition of USA TODAY. ) WINNIPEG – The end has to come sometime. Most athletes try to hold on as long as they can to avoid the inevitable. Rashad Evans and Dan Henderson might not be thinking retirement, but a loss for either at UFC 161 could mean a different end — the end of their title aspirations in the UFC. Evans (17-3-1 MMA, 12-3-1 UFC), a former UFC light heavyweight champion, meets former PRIDE titleholder Henderson (29-9 MMA, 6-3 UFC) in a main event that on the surface has little on the line but bragging rights between two all-time greats