Khan will make his welterweight debut against a former opponent of Ricky Hatton, and price per head services expect a very intense showdown.
This will be his first fight since Khan struggled to clinch a win against the veteran Julio Diaz last April in Sheffield.
Khan was hoping to fight Mayweather, but pay per head sportsbooks learned that the American superstar instead decided to fight Marcos Maidana, and that fight will top the bill.
Khan hopes that a win over the 32-year-old Collazo will send him closer to a clash against Mayweather – a fight that pay per head sportsbooks would certainly not mind watching.
Hatton also made his debut at welterweight against Collazo in May 2006 in Boston, when the Manchester fighter was thought to be lucky to clinch a unanimous decision win.
Collazo will enter the contest with a four-fight winning streak, and a record of 35 fights and five losses. Pay per head sportsbooks saw that he had an impressive second-round stoppage in January of Victor Ortiz, former WBC champion.
“He gave Ricky a tough fight back in 2006 and we know it’s not going to be easy,” he said.
“He’s had a good win in his last fight so he’s going to be confident and come to fight.
“It’s going to be my first fight at 147lb so he’s going to come at me with everything. We are going to be ready for this and we’ve been waiting a long time.
“I’ve had a long break, but I’ve been in the gym and working on mistakes I’ve made, getting strong and taking time to relax and not think about the boxing side of it.
“I’ve been working non-stop though, having some great sparring sessions that will hopefully keep off the ring-rust so I’m going to come in there and give it 100 percent.
“The fight with Mayweather will happen in the future, but I’m just going to concentrate on one style which is Collazo’s.
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“I’ll probably be at ringside for Mayweather’s fight against Maidana and will call him out again in the press conference so we’ll have to see what happens.
“I think he wants the fight and there’s a lot of public demand for it. There’s not a lot of fights out there for him so if he wants to have another three fights in his career I have to be one of them.”