NATHAN CLEVERLY will defend his WBO World light-heavyweight title against Shawn Hawk at the Staples Center, Los Angeles on Saturday night, live on BoxNation (Sky Ch. 437/Virgin Ch. 546).

The American, 28, steps in at short notice and replaces Ryan Coyne who was forced out of the big showdown because of contractual problems.

"He has a big opportunity by coming in late for a world title bid. He has nothing to lose. He is dangerous but I will be on my guard.”

Hawk, known as the Sioux Warrior because of his American-Indian background, has 23 wins, two losses and a draw to his name and jumped at the chance when the offer to fight Cleverly landed.

He has stopped 17 of his opponents - 15 of them inside three round - and holds win over decent men like Otis Griffin and Henry Buchanan.

Cleverly, 25, warned: “I will be aiming to look good and will definitely be trying to take him out.

Cleverly admitted that the late switch has caused him a slight problem. He has sparred with southpaw boxers preparing for Coyne while South Dakota’s Hawk is orthodox.

"If I go on my fighting instincts I should be fine on fight night. I should be able to do the business.

"I got to the stage where I didn't care anymore who I was fighting. I decided I was ready to come here and fight whoever it is.”

Cleverly v Hawk is live and exclusive on BoxNation (Sky Ch. 437/Virgin Ch. 546). Join at boxnation.com