Amir Khan says he is the favourite to be Filipino legend Manny Pacquiao's final opponent.
Khan appeared to rule out the fight a few months back, but now reckons there is a "big chance" it will happen.
Pacquiao's promoter Bob Arum also named Khan as one of the likely opponents, along with Terence Crawford and Tim Bradley.
"I am the front-runner," Khan told BBC Sport.
"Manny Pacquiao makes a good story because we've been training partners and I've been with his coach Freddie Roach.
"There's a big chance of the fight happening, it's all about making sure my team is on point with the deal and they need to make sure they get the fight that I want."
Khan says he would be a much more fitting final opponent for Pacquiao than Andre Berto was for Floyd Mayweather.
"It would be Manny Pacquiao's last fight and end his career in a big way, not like Floyd Mayweather where, no disrespect to Berto, but I think Floyd finished his career on a low note," he said.
Khan also didn't rule out a domestic showdown with Kell Brook, though he still believes his fellow Briton needs to prove himself.
"My body's taken all the wear and tear where I'm fighting the best fighters in the world and he's not even fighting half of them," said Khan.
"I want him to prove himself so it's a big fight, we go into the ring 50-50 and it's a massive fight not only for Great Britain but around the world."