Mike Rhodes has suffered an injury and he is off the UFC Fight Night 51 card, replacing him against Paulo Thiago will be Joe Riggs. Thiago has only won two of his last eight under the UFC banner and he has not won a bout in over a full year. Riggs is returning to the UFC after a seven year absence, but he did win the Bellator “Fight Master†reality show. UFC Fight Night 51 takes place on September 13th from the Nilson Nelson Gymnasium in Brasilia, Brazil with Antonio Silva and Andrei Arlovski headlining.