Khan will need a much sterner test than this when he fights again in August to see what level he is really at.
"I've been out the ring for two years", said the victor in reaction to his victory.
"I'm not Lo Greco, I'm Kell Brook, "The Special One" and I will deal with him", said Brook. At the moment, I'm a 147-[pound] fighter.
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The former world champion insisted he is "chasing" Brook after joining him in Eddie Hearn's promotional stable, but then left the ring before they could discuss a domestic clash. He's got the fastest hands I've been in with. I wanted to prove a point. Get Me Out Of Here!.
Khan showed he is not done yet at a raucous Echo Arena, where he came out firing with the quick hands that made him such a force at the peak of his powers and Lo Greco suffered a humiliating defeat in less than a minute.
Khan celebrated wildly after almost five years away from a British ring and then stoked up his rivalry with Kell Brook, who was watching from ringside.
The possibility of Brook and Khan meeting in the ring was enhanced when the latter buried the hatchet with Hearn and signed a three-fight deal with Matchroom in January.
"Amir, all the fans want the fight, I want the fight, he can go in the jungle and chase stars but when he gets in there with me, I´ll make him see stars".