Amir Khan open to fighting Manny Pacquiao if he does not get Floyd Mayweather

Amir Khan says he is willing to take on his former gym-mate Manny Pacquiao if Floyd Mayweather opts against fighting him.

Khan said Pacquiao turned down the opportunity to face him in the past and insists a fight can happen if the Filipino wants to face him.
The Olympic silver medalist's hopes of securing his dream clash with Mayweather took several blows last week, with Keith Thurman and Kell Brook championing each other's claims before
"You've been doing your homework," Mayweather said. "There are two names out there that I'm going to fight. I'm either going to fight Karim Mayfield or Andre Berto in September."