By John J. Raspanti: When defending WBO super middleweight champion Arthur Abraham arrived in Las Vegas last week, he expected to be a big favorite to win on April 9. Makes sense. During his 16-year career, Abraham has swapped punches with most of the best fighters in his division, including former champions Carl Froch and Andre Ward. Instead Abraham learned his opponent, unheralded youngster Gilberto Ramirez, was favored by most to defeat him...