The fight started with Viloria setting the early pace and for the first 30 seconds it was Viloria coming forward, forcing Gonzalez backwards and landing several shots, including a notable body shot. It seemed as if Viloria knew his best shot was to jump on Gonzalez before the Nicaraguan got settled. By the end of the round however Gonzalez had taken the center ring and it was looking like he had began to settle.
Viloria's confidence was still fully there in round 2 as he more than held his own in a very competitive and close round. The challenger managed to land a number of solid shots and appeared to be targeting the body of Gonzalez however it did, again, seem that Gonzalez warmed to the task before the round was over and by the end of the round it seemed like Gonzalez was starting to force his fight.
Gonzalez's momentum grew in round 3 as he quickly dropped Viloria with a short right hand. Viloria recovered his feet but had a torrid time in the remainder of the round as Gonzalez reeled off some vicious combinations, landing some spiteful shots to both the head and body and showed the offensive prowess that has made him such a must watch fighter.
Viloria, much to his credit, saw out the third round and managed to have some success of his own but was on the receiving end of real punishment again in round 4 as we saw what high skilled offensive boxing is all about, from both men. Viloria, whilst not embarrassing himself, was being figured out by Gonzalez who was looking in control of the ring, despite big shots being landed from Viloria.
Round 5 was one of the worst rounds for Viloria who looked very much out of his depth for a round though showed his toughness to see out the storm and came back himself in rounds 6 and 7 as the action returned to being competitive, yet easy to score for Gonzalez. It seemed that whilst Viloria was having success, he was being forced to take some really solid combinations that over-shadowed his own success.
The pace was slowing down in round 8 yet both both men stayed in close quarters, landing shots up close. Sadly for Viloria he was being comfortably out landed by Gonzalez who was reeling off combinations as and when he wanted to turn up the pace. Viloria tried to stem the tide but he had little answer to Gonzalez's accuracy, timing and sensational output.
Before the start of round 9 the doctor had a word with Viloria, it wasn't a serious one and it never seemed like the doctor was going to stop the fight but it did delay the start of the round. Despite the delayed start the round started well for Gonzalez though a body shot part way through seemed to hurt the Nicaraguan who took about 20 seconds to recover himself. When he did recover he decided to punish Viloria with another devastating combination that rocked Viloria who was quickly saved by the referee. The stoppage may have been slightly early but it did appear to be a fair one, especially given the way that Viloria was helped to corner.
The win was another excellent one for Gonzalez. It wasn't punch perfect by any stretch of the imagination but it was another high quality win to add to his already impressive resume. For Viloria the bout may be his last at the top level however it was a great from the challenger.
Now attention for Gonzalez may well turn to the proposed super fight with Naoya Inoue, in 2016, or perhaps a bout with another of the champions, at either 112lbs or 115lbs. Bouts between Gonzalez and Juan Francisco Estrada, Amnat Ruenroeng, Kohei Kono or Carlos Cuadras would all have major appeal, especially with HBO backing Gonzalez like they are doing.