Is Anthony Johnson too small for middleweight?

A 15-pound jump is huge in the fight world, unless you're a guy who walks around 40 pounds heavier than your weight class.
This weekend at UFC 142 in Rio de Janeiro, Anthony Johnson is moving from 170 pounds to middleweight against veteran Vitor Belfort.
Belfort is no small 185 pounder. He spent most of his career at light heavyweight before the drop down. Watching the UFC 142 prefight conference today and judging by some photos it was hard to tell if Johnson is making a mistake from a size standpoint.
George Garcia from MMAjunkie radio thought Johnson looked undersized.

Looking at the photo above, he might be right, but then in the photo below Johnson looks like the bigger fighter.

In the end, it probably won't matter unless the fight features plenty of clinch work. Johnson says Belfort won't be able to handle his onslaught on the feet.
"Versatility will be a key in this fight," Johnson told HeavyMMA. "I have punches, kicks, takedowns, and he still has a long way to go. But I'm not looking past his abilities or anything like that. I just don't see anything Vitor can do to me that I can't do to him and then some.
Watch UFC 142 right here on Yahoo! Sports
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