Since he first became an NFL head coach in 2009, Rex Ryan has been famous—and infamous—for having no filter. The guy says what's on his mind, when it's on his mind, without need nor care for consequences.

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That's great when he's in your corner and on your side. However, when he has his sights set on you, it can be withering.

That's what New York Jets fans are experiencing this week. After loving Ryan's brash style and stark candor for six seasons, they're suddenly finding their franchise to be the brunt of his barbs.

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Second-year tight end Jace Amaro recently gave and interview criticizing the way Ryan ran last year's Jets locker room, describing it as a lack of accountability. Ryan, who is now the coach of their division rival Buffalo Bills, was not too pleased with that assessment.

“He’s full of [expletive], and I’ll remind him of that when we play him,” Ryan said, via Sports Illustreated's MMQB. “Look, we weren’t perfect, and I never said we were going to be perfect. But that’s a [expletive] B.S. comment. But, hey, he’s happy that he’s got a different coach in place. We’ll see how happy he is when I play against him.”

Don't look now, but Jets-Bills just became the must-see early match-up of the upcoming 2015 season!