By Edward Chaykovsky

Amir Khan (31-4, 19KOs) still believes a showdown is possible with his former sparring partner, eight division world champion Manny Pacquiao.

The two fighters had sparred numerous times when both were trained by Freddie Roach. Khan left Roach in 2012 and hired Virgil Hunter.

The two camps were in talks earlier this year to face each other for Pacquiao's presumed final fight in April. That didn't happen when Khan was passed over in favor of a trilogy fight with Timothy Bradley.

Once Pacquiao was out of the picture, Khan went in a totally different direction when he agreed to face WBC middleweight champion Saul 'Canelo' Alvarez at a catch-weight of 155-pounds.

That fight took place last Saturday night at the T-Mobile Arena in Las Vegas, with Khan suffering a brutal knockout in the sixth round.

This past Tuesday Pacquiao won a senate seat in the Philippines, but Khan feels he will fight again. Pacquiao's trainer, Freddie Roach, also believes his boxer will return again for at least one more fight.

“That fight [with Pacquiao] is definitely a possibility,” Khan said. “We are just going to sit down with the team. For sure I think he will fight again.”

Despite the vicious ending in his last fight, Khan is not looking for a soft touch in his return. He is ready to fight the biggest name possible in the fall.

Khan holds Pacquiao as an option and he also holds WBC welterweight champion Danny Garcia as a top option. Khan is still the mandatory challenger to Garcia's title.

"I can go straight into another big fight. I was winning the fight (against Canelo). The skill, fitness and strength was there - I just got caught by a big shot. These are the last few years of my career now. I want to maximize it and fight the biggest names in boxing a leave a great legacy behind," Khan said.