Sergio Gabriel Martinez vs. Julio Cesar Chavez Jr
2012-09-15 : Sergio Gabriel Martinez 159 lbs beat Julio Cesar Chavez Jr 158 lbs by UD in round 12 of 12
- Location: Thomas & Mack Center, Las Vegas, Nevada, USA
- Referee: Tony Weeks
- Judge: Stanley Christodoulou 117-110
- Judge: Adalaide Byrd 118-109
- Judge: Dave Moretti 118-109
- World Boxing Council Middleweight Title (4th defense by Chavez)
- Promoters: Bob Arum (Top Rank), Lou DiBella (DiBella Entertainment)
- Ring Announcer: Michael Buffer
- Aired On: HBO Pay-Per-View (Main Event)
- Martinez was knocked down once in the 12th.
- Martinez was hospitalized after the fight with a broken left hand he sustained in the 4th round. Martinez also suffered a right knee injury, which probably occurred when he was knocked down in the 12th round. Martinez also needed 8 stitches to close a large cut over his left eye, and he also needed a couple of staples in his head.
- A few days after fight, it was revealed the Chavez tested positive for marijuana.
- According to figures provided by the Nevada State Athletic Commission, a total of 16,939 tickets were sold to the eight-fight card. Another 751 tickets were given away for free. No tickets went unsold. The card produced a total gate of $3,052,475.
- HBO has reported that fight generated 475,000 pay-per-view buys and close to $25 million dollars in revenue.
The first round was very slow, with Chavez not doing much or anything. Chavez started to pick things up with very hard body shots in the second. Martinez came roaring back in the third and he was outhustling the young champion with movement and quick accurate punches. Chavez had no answers in the fourth and fifth, allowing Martinez to take control with hard punches and sheer activity.
Chavez started off well in the sixth, landing hard shots to the head and going back to the body. But Martinez stole the round with a boxing clinic in the final minute, landing combinations at will to bust Chavez up.
Martinez dominated the seventh round. Chavez tried to rally in the final thirty seconds, but Martinez was firing right back. Chavez had limited moments of success in the eight, but not enough of them to gain a point with the judges.
The ninth round action was controlled by Martinez, but he suffered a cut above the left eye and his face was started to swell a bit. The tenth round was more Martinez, but his pace began to slow down. He was still moving very well and outboxing Chavez, who wasn't throwing enough punches.
Chavez's big mistake in this fight was the lack of consistent pressure and activity. There were several rounds that he gave away on silver platter. The eleventh was a back and forth war. Martinez started strong, with Chavez taking over around the middle of the round with punches to the head and body, and then Martinez coming back with numerous combinations to send the crowd into a frenzy. The twelfth and final round saw Chavez stalking and Martinez staying away, but Chavez manged to land some very hard shots when the Argentine boxer stood his ground to exchange.
In the final minute of the twelfth, the entire arena went crazy as Chavez land several hard punches to drop Martinez, who was seriously hurt and in real trouble. Chavez tried to finish him off, but he couldn't put him away before the final bell as over 19,000 fans were standing on their feet. 
- "He fought a great fight and he was a lot tougher than I expected," Sergio Gabriel Martinez said. "He showed great heart. If Julio wants a rematch, we'll do a rematch."
- "You saw a boxing clinic for 11 rounds and you saw an epic last round," Lou DiBella said. "I don't know how he held on."
- "I would knock him out in the rematch," Julio Cesar Chavez Jr. stated when predicting the outcome of a second meeting.
- "This fight did unbelievable business. The next fight will do even bigger business," Bob Arum said.
- "What Jr. did in the ring against Martinez was only 40% of him. I don't know what happened. There is no justification or excuses. This is going to be a valuable experience for him. He didn't box for practically the entire fight. The truth is, he did things his way for this preparation and because of this things did not go as they should have. I hope that he understands what happened. He was about to repeat my knockout of Meldrick Taylor. My son had everything to win against Martinez. A rematch could happen in mid-2013. I think if he starts [fighting hard in the early rounds], like he did at the end, [the rematch] will play out in the same manner that it ended, where Julio was about to win by knockout," Julio Cesar Chavez Sr. said.