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Input: The quickest turnaround in Michael Bisping's storied UFC career resulted in the quickest loss of his career  as he was knocked out in less than three minutes by  Kelvin Gastelum  on Saturday.
For Bisping (30-9)  it's his second loss in three weeks. The future Hall of Famer surrendered his middleweight title to Georges St-Pierre in a submission loss at UFC 217 in New York. He agreed to face  Gastelum  on short notice when his original opponent  Anderson Silva  was flagged with a potential doping violation.
"I just want to say congratulations to  Kelvin Gastelum  " Bisping said. "Job well done tonight. I was enjoying myself  and he caught me with a good shot.
It was the southpaw's stinging left hand that got the job done again on Saturday.  Gastelum  opened with a hard kick to the body  which certainly caught Bisping's attention. But the primary weapon in his offense has always been the left hand  which he landed shortly after slipping a right cross from Bisping.
Bisping's legs went out from under him on the shot  and  Gastelum  followed with strikes. Referee Marc Goddard stepped in immediately.
Afterward   Gastelum  called out interim champion Robert Whittaker. Whittaker (19-4) won the interim title last summer and was expected to unify the belts against St-Pierre  however  St-Pierre has already expressed interest in moving down in weight.
"This is the biggest one of my career  " Gastelum  said. "I have a huge amount of respect for Bisping for stepping up.

Kelvin Gastelum knocks out Michael Bisping in less than 3 minutes in Shanghai