What chin? Amir Khan does not have a chin. It's made of poppadom or something of that nature. Amir Khan is a coddled fighter & a joke. He flaps his irrelevant glass jaws about fighting Mayweather meanwhile he done lost 3 fights that tarnishes his record until he rights his wrongs. Why don't he want to secure his legacy? He needs to sit down and have a chat with Lennox Lewis about a thing called legacy and another thing called revenge.
There's a reason Khan's last 2 opponents have been feather-fisted. It's only a matter of time before he gets knocked out again.
Not as bad as haters make out - the same way his skill and power aren't what his fanatics make out. What the haters are dead right about is his tendency for going full re-re when ddrawn into a firefight, the same as his fanatics are dead right (for the most part) about his speed.