Khan: Floyd can't keep running

   Amir Khan believes Floyd Mayweather must
come out of retirement to face him if he beats
Saul 'Canelo' Alvarez this weekend.
   Khan, whose public pursuit of about with
Mayweather last year ended in disappointment,
steps up to a catchweight of 155lbs to challenge
Canelo for the Mexican's WBC middleweight
crown in Las Vegas on Saturday.
   Khan has moved up two weight divisions (pic Tom
Hogan)

Mayweather bid farewell to boxing after
beating Andre Berto and extending his perfect
record to 49-0 last September but hinted at the
weekend he could come out of retirement for one
last hurrah.
  Khan says Mayweather would have no credible
option other than to fight him if he can beat
Alvarez and the Bolton fighter insists a meeting
with Mayweather would be the simpler task of
the two.
"I think the Mayweather fight has to happen if
I beat Canelo. Mayweather hinted last weekend he could be tempted
to return to the ring
"Styles make fights and I really believe a fight
with Mayweather would be easier than a fight
against Canelo.

   Canelo has got that physical strength whereas
Mayweather would be like a game of chess.
"I've got a massive fight with Canelo in front of
me and by winning this fight it would definitely
take me on to the biggest fight of my career and
a bigger one than the one I'm going to be facing
on Saturday."
 Khan insists Mayweather would be an easier opponent
than Canelo
  Khan was widely expected to face Kell Brook
next but stunned the boxing world in February
when he announced his clash with
Canelo , whose only career loss came against
Mayweather in 2013.
  "This has to be one of the biggest fights of the
year because everybody is talking about it,"
added Khan.