British boxer Carl Froch (L) prepares to deliver the knock out right hand punch against British boxer George Groves (R) during their WBA and IBF super-middleweight title bout at Wembley Stadium in north London on May 31, 2014. Froch knocked Groves out in the eighth round to retain his WBA and IBF titles. AFP PHOTO / BEN STANSALL        (Photo credit should read BEN STANSALL/AFP via Getty Images)