WATCH: BRUTAL! Amir Khan knocked out by Canelo Alvarez in sixth round

Khan won the first couple of rounds before Alvarez worked his way into the fight at the T-Mobile Arena.

New Delhi: Saul "Canelo" Alvarez successfully defended his World Boxing Council middleweight title in spectacular fashion Saturday with a devastating sixth-round knockout of Amir Khan.

The 25-year-old Mexican dropped Khan with a straight right hand over a left jab that sent the Briton crumbling to the canvas where he lay there motionless for a couple of minutes.

Khan, who moved up two weight classes to face the bigger champ, started strong and won the first couple of rounds before Alvarez worked his way into the fight at the T-Mobile Arena in Las Vegas.

Canelo Alvarez Puts Amir Khan to sleep pic.twitter.com/13K0MeqGmS

— 90thMin (@90thMin) May 8, 2016

Here's @Canelo Alvarez KO over @amirkingkhan #CaneloKhan pic.twitter.com/AQhphB9bRW

— ConstantinoGarcia (@Constntino) May 8, 2016

Im okay everyone thats boxing for you, congrats to @Canelo monster punch, much love to all the fans! #CaneloKhan pic.twitter.com/oQcqZQrsLl

— Amir Khan (@amirkingkhan) May 8, 2016

(With Agency inputs)