NFL

James Harrison and every opposing QB he's ever faced. I'm not 100% sure he even liked his own QB that much.

Alex Mack & Shaun Smith after Smith punched him in the balls during a pile.

Though probably a lot of players dislike Shaun “the nutcracker” Smith. Dude was an instigator!

Mason Rudolph probably isn't the world's biggest Miles Garrett fan

Not a player but Josh McDaniels hates Derek Carr.

Bill Belichick and the entire Jets organization

Chauncey Gardner and just about everyone that plays against him it seems.

TALIB AND CRABTREE rip that chain.

Steve Smith still thinks Aqib Talib should ice up, son.

Josh Allen and Christian Wilkins

TSizz haaaated Willis Mcgahee!

DK Metcalf and Jalen Ramsey back in the day

Big Ben and Richard Seymour. At least that one time…

Taylor Lewan and everybody

I like to imagine CJGJ and Javon Wims are still gonna be pulling each others’ dentures in the nursing home.

Mcnabb and TO

Lions and Packers players are getting more and more chirpy every time they play, obviously doesn’t answer your question but some bad blood is brewing.

WELL I’M THE BEST CORNER IN THE GAME. WHEN YOU TRY ME WITH A SORRY RECEIVER LIKE CRABTREE, THAT’S THE RESULT YOU GONNA GET. DON’T YOU EVER TALK ABOUT ME.

Richard Sherman and Michael crabtree

Mike Evans and Marshon Lattimore

Going into the archives a little here:

Roger Staubach and Diron Talbert.

Merlin Olsen and Conrad Dobler.

Bill Romanowski and pretty much everybody else.

Dion Dawkins and the Jets

Eddy Lacy and the team nutritionist

I wanted to see more of Earl Thomas vs Pete Carroll but I got blue balls after seeing Earl flipping off Carroll and then nothing else significant..

crabtree and talib

sherman and crabtree had some legendary beef

Aqib Talib and Mike Evans