Christmas will come early this year as unified middleweight champion Gennady Golovkin and Saul 'Canelo' Alvarez will step into the ring.

The fight everyone has been waiting for was announced Saturday, with unbeaten Golovkin and Mexican two-weight world champion Canelo to go head-to-head on September 16.

Canelo confirmed the blockbuster middleweight showdown following his unanimous victory over fellow Mexican Julio Cesar Chavez Jr. in Las Vegas as he improved to 49-1-1.

During the fight with Chavez Jr., there were several times where Canelo allowed himself to get pinned against the ropes as Chavez Jr. would have brief moments where he actually put some punches together.

Canelo denies that he was hurt and says he was trying to set traps. He does admit that his body got tired by second half of the fight, but he caught a second wind.

“I wasn’t ever hurt. But I was inviting him to open up and exchange so we could give the public a beautiful fight. The preparation, the hard work was done in training and yes of course in the fifth, sixth round I felt a little exhausted but that’s normal. Then I got my second wind and picked it up and finished strong,” Canelo said.

In the fall, Canelo is surely going to have a much tougher assignment in front of him.

"In September, they will see the greatest fight," Canelo said. "The era of Canelo is the best because I fought the best."

Golovkin - a notable onlooker during the fight against Chavez - stepped into the ring in a scene similar to WWE following Canelo's convincing win as the pair stood toe-to-toe, much to the delight of the crowd.

"I'm very excited... we're ready," Golovkin said, surrounded by his entourage.

Golovkin boasts a flawless 37-0 record following his points decision against Daniel Jacobs in March.

As Golovkin prepared to leave the ring, he said: "Good luck in September," to which Canelo replied: "Luck is for mediocre people".