Jon Jones successfully extended his reign as the UFC light middleweight champion, but not before fending off the toughest challenge of his career in Alexander Gusfafsson at UFC 165 on Sunday at Air Canada Center in Toronto, Canada.

For the first time in his UFC career, Jones exhibited tremendous heart and will power to beat Gustafsson 48-47, 48-47, 49-46 in what could go down as one of the most electrifying championship showdown in UFC history.

With the victory, Jones successfully defended his title as the UFC light heavyweight for the sixth time and joins George St-Pierre and Anderson Silva to win their first 10 UFC fights.

In the undercards, Renan Barao retains his UFC interim bantamweight championship after beating Eddie Wineland via technical knockout 26 seconds into the second round of their bantamweight fight. Barao defended again the interim bantamweight title, giving him more momentum as prepares for his upcoming clash with Dominick Cruz for the unified championship of the world.

UFC 165 Fight Card & Results

Light Heavyweight: Jon Jones (c) def.Alexander Gustafsson via Decision (unanimous) (48-47, 48-47, 49-46)

Bantamweight:Renan Barão (ic) def. Eddie Wineland TKO (spinning back kick and punches) 0:26 of the second round

Heavyweight: Brendan Schaub def. Matt Mitrione - Technical Submission (d'arce choke) 4:06 of the first round

Middleweight: Francis Carmont def. Costa Philippou - Decision(unanimous) (30-27, 30-27, 30-26)

Lightweight: Khabib Nurmagomedov def. Pat Healy - Decision(unanimous) (30-27, 30-27, 30-27)

Highlights and Online Reaction of UFC 165: Jones vs. Gustafsson

— BJ PENN (@bjpenndotcom) September 22, 2013

JON JONES STILL THE CHAMPION!! Great fight. — Ludacris (@Ludacris) September 22, 2013

Man they cheated homie. Jon jones def lost

— Trevor Booker (@35_Fitz) September 22, 2013

Just posted: "Jon Jones gets the decision against Alexander Gustafasson in probably the greatest fight of 2013" ( http://t.co/OO5MScmQcR ) — MiddleEasy (@MiddleEasy) September 22, 2013

What. A. Fight. Jon Jones survives a furious bout with Alexander Gustafsson at #UFC165: http://t.co/DZ5oDuXYHd // pic.twitter.com/KMQOhy21L7

— USA TODAY Sports (@USATODAYsports) September 22, 2013

GIF - Jon Jones can barely walk to medicals http://t.co/kKCHUrV2MS hurt his foot? — ZombieProphet (@ZProphet_MMA) September 22, 2013

Damn, Jon Jones face is all kind of messed up! #UFC165 → pic.twitter.com/3ll3sWAf3N

— E10ne (@3lone) September 22, 2013