So much for all the new lifestyle changes, training adjustments and all that jazz for Chuck Liddell.

Once again, he left himself wide open and got knocked out with one punch. This time, it was Rich Frankin doing the knocking out with five seconds left in the first round at UFC 115 in Vancouver.

Liddell had dominated the first round with leg kicks -- leg kicks! -- and punches. But as he moved in toward the end of round, he missed with a big right hand. Franklin stepped to his left and threw a right hook.

Liddell went down hard, just like he did against Mauricio "Shogun" Rua and "Suga" Rashad Evans.

"The thing about Chuck is when he comes after you, he really overcommits to things," Franklin said.

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Franklin (28-5) said he broke his left arm during the fight when trying to block one of Liddell's kicks.

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After 14 months away from the octagon, Liddell (21-8) still used that awkward placement of his hands, but he's threw more leg kicks in the opening minutes than perhaps in his entire career.

Liddell followed up with -- get this - a takedown of Franklin at the three-minute mark. When the fighters stood up 30 seconds later, Liddell had a cut over his left eye, most likely from a headbutt or collision on the takedown.

In the final minute, Liddell caught a Franklin leg kick and returned with a big punch that sent Frankling stumbling.

But, as we've seen in recent fights by the 40-year-old Liddell, he left himself wide open and doesn't have the chin he once had when he ruled the light heavyweight division from 2005-07.

Will this be the last of Chuck Liddell (again)? For the sake of his health and his legacy, we hope so.  

@NewsdaySports