Geno Smith is firing back at Rex Ryan -- after his old NY Jets coach dissed him on ESPN ... and it's getting nasty.
It all started on "Get Up" -- when Ryan was trying to make the argument that he could have been as successful as Bill Belichick had he had a great QB like Tom Brady.
"Let’s give [Belichick] somebody else. Let’s give him Geno Smith. Let’s give him whoever, and let’s see how many Super Bowls he would have won. We saw the answer was zero in Cleveland,” Ryan said.
If it seemed personal, it was!