Trainer Freddie Roach believes that Amir Khan will soon be good enough to fight Floyd Mayweather.
Khan beat Marcos Maidana on a unanimous points decision to retain the WBA light-welterweight title defence in Las Vegas on Saturday, despite receiving some punishment from the Argentinian.
Roach also trains Manny Pacquiao, and would prefer Khan to fight Mayweather rather than the Filipino.
"It was a great fight," Roach told Sportsweek on Radio Five Live.
"He showed a lot of heart and a good chin. He went from a boy to a man today.
"It was his ultimate test so far. He fought the toughest guy out there.
"I don't think him and Pacquiao will fight each other, they are very good friends. I wouldn't like to see two guys who are very friendly fight each other.
"Business is business and you never know but I hope Mayweather comes to the table first. I have two guys I believe who can beat him."
Roach hopes Khan will face the winner of the fight between WBO light-welterweight champion Tim Bradley and Devon Alexander, before moving up a weight to face Mayweather.
"We need another fight at 140 pounds to make sure he looks good and stop making the mistakes he made," said Roach.
"It could happen. If he cleans up the 140 pound division and goes to 147, Mayweather won't fight Pacquiao but maybe he will fight Amir Khan.
"It would be a fight I would welcome."