Uncle Chael is at it again! Target Machida.

UFC middleweight contender Chael Sonnen has a date with Mark Munoz at the end of January, but he doesn't waste any time in taking shots at possible future opponents, and Lyoto Machida is someone he may end up facing if the former UFC light heavyweight champion decides to drop in weight for his next fight.

Sonnen recently tweeted about "The Dragon."

I don't have time for "pee pee" mouth. All the time I can spare him is enough to cold cock him and walk away.

Of course, Sonnen is referring to Machida, who is known to drink his own urine leading up to his fights. It was most notably shown leading up to his title fight with Rashad Evans at UFC 98, where he would go on to capture the title by second-round knockout.

Evans also made jokes about the subject at the time of the fight, saying Machida's secret weapon could be "urine breath."

Sonnen's response came from a Machida tweet just hours before.

Chael Sonnen, acabei de sair da cirurgia, mas posso lhe dar seu presente dentro do octogono com um so braco e so vc aceitar a luta.

Translation: Chael Sonnen, I just got out of an surgery but I can give you your Christmas gift inside the octagon with only one arm. Just take the fight

Since that fight, Machida's career has been up-and-down, winning two fights and losing three. His losses came against Mauricio "Shogun" Rua, Jon Jones and Quinton Jackson.

Sonnen will face Munoz at the upcoming UFC on Fox 2 show, which features a main event between Rashad Evans and Phil Davis. Munoz is a former NCAA Division I wrestler and has claimed victories over Demian Maia and Chris Leben. The winner could be next in line to face UFC middleweight champion Anderson "The Spider" Silva.

If Silva isn't ready by the time Sonnen wants to fight again, a fight versus Machida could be on order, and it would already have a lot of hype behind it.