The bad blood between Rory MacDonald and BJ Penn is heating up yet again.

The two aren’t scheduled to fight until December 8th at UFC on FOX 5 in Seattle, Washington, however they have hit the Twitterverse to let their feelings be known.

Rory MacDonald initiated things by tweeting a picture of himself and claiming to be weighing in at 200lbs.

Rory MacDonald ‏@rory_macdonald

200lbs and @bjpenndotcom thinks i care if hes in shape for the fight or not #newgenerationmindset



Penn followed up and things just kept moving from there.

BJ PENN ‏@bjpenndotcom

Great!!! I frekin love knocking out 200 pounders

Rory MacDonald ‏@rory_macdonald

Do u meen knockin back quarter pounders? Who r u kidding, certainly not yourself ?

BJ PENN ‏@bjpenndotcom

Quarter pounders?? Really pimple boy? I won’t even RNC you… afraid of all the pimples on your back. #GROSS

Rory MacDonald ‏@rory_macdonald

I didnt think it was possible but somehow u made yourself even less of a threat.

UFC on FOX 5 will be a great card if it goes as planned. It’s expected to be headlined by a lightweight title fight between Benson Henderson and Nate Diaz.

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