Quebec City - Canadian southpaw Adonis Stevenson retained his World Boxing Council light heavyweight world title with a lopsided decision over Australian Sakio Bika.

Haitian-born "Superman" Stevenson dropped Bika twice, but he couldn't finish him off.

Bika, who was born in Cameroon, and formerly held the WBC super middleweight world title, fell to 32-7 with three drawn and 21 knockouts -- but he's still never been stopped inside the distance. Stevenson took some time to get to grips with Bika's awkward style, but got to him with some hard punches in the fifth when Bika went down in what was ruled a slip.

He sent Bika to the canvas in the sixth with a big left, and connected with a short left to the mouth to drop him again in the ninth -- Bika barely making the count before the bell sounded to end the round.

The ringside judges scored the bout 115-111, 116-110 and 115-110 in favor of Stevenson, who had the vocal support of the crowd in his adopted home of Quebec City.

"I worked hard to be able to go for 12 rounds. I dropped him twice. He's never been knocked out and I knew he'd come prepared to fight. I said I would be happy with a knockout or going the distance to get the win. So I'm very happy with how I fought today and with the result," Stevenson said.

"Bika used his head a bit and tried to brawl, but I was able to control the fight. I knew he didn't just come to Canada for fun, but to win. Being involved with Premier Boxing Champions and fighting on CBS has been a great experience. This is fantastic for boxing and we're hoping more and more kids will start getting involved in the sport.

"As far as what's next, I'll wait and see what Al (Haymon) has for me. I'll be ready to go again by June or July."