Sports Rivalry Enthusiast T-Shirts

"Yin and Yankee fan"

I only root so hard for my time because I hate your team so much.

"This should be hilarious."

"Why don't you come get me? Oh that's right, you aren't allowed on the couch!"

You were warned about mixed marriages.

Tic-tac-toe

"Just being proactive."

Next Wave Collegiate Sports

"...And don't give me that 'I hope his precious little Blackhawks lose' look either!"

"That's $20 for you if you pluck the tail feathers off my rival over there..."

"I guess there ain't room in this town for two bonsai specialists."

'You beat me by two...but with your penalties I beat you by 150!'

"That Melinda Alvarez thinks she's so smart! Well, I've been studying, and I'm gonna teach her a lesson on the test we have today!"

Fight on the top

'I warned him about watching the game at the opposition's pub.'

'I hate snowboarders!'

Lion v Kiwi.

'For heaven's sake Armitage - can't you just accept 2nd place in the best leek category?'

Dog tallying his score against the mailman.

"I thought they decided who was the best team last year?"

David Anderson vs. Goliath

"A phony attorney…I'm so disappointed, son. Your brother is a phony doctor."

I've just found out our competitors are losing money faster than we are.

When feud becomes best seller! Moby Dick vs Herman Melville!

'You're useless, Johnson. I like that in a rival.'

"Joseph's jealous brother adds bleach to the coat of many colors wash."

'You were never a team player, Thornton.'

"Sometimes I think you guys don't want peace."

'Yeah - baseball, football and hockey...got concussions in all of them.'

The Red Cat: Beagle's About/Plate of Feud/Peer Group.

'It all started over who had the bigger medical file.'

Keepy-uppy with the Joneses.

'Do it again.'

"Nobody realized I was a man to watch until it was too late."

'Identify those with leadership potential. I need to eliminate the competition.'