By Mike Coppinger

David Lemieux (32-2, 30KOs) was once a rising star.

That was before the Canadian puncher was exposed for what he is: a one-dimensional fighter.

In 2011, Lemieux was stopped by Marco Antonio Rubio, then lost a majority decision in his next bout to Joachim Alcine.

Lemieux has feasted on pedestrian competition since, but now steps up to an HBO main event bout against Gabe Rosado (21-8, 13KOs). It figures to be an all-action brawl, and with limited potential opponents for Gennady Golovkin, the winner will be in a great spot.

"I want to take this opportunity to prove that I represent a real threat to the middleweight division," Lemieux said on a Monday conference call. "... I'm very excited to give the fans what they want to see and give them something new they haven't seen."

The fight headlines an Boxing After Dark  tripleheader from Brooklyn's Barclays Center on Dec. 6.

Follow Mike Coppinger on Twitter: @MikeCoppinger