Abbey Lee Kershaw
Abbey Lee Kershaw

The European girls, like the Russians, tend to stick together, but there's never any rivalry. Sometimes there's a little bit of tension with the older girls because they might feel a little threatened by the younger models, but it's not between personalities.

Ana Ivanovic
Ana Ivanovic

There's really not much friendship between the girls on tour. There's so much rivalry and jealousy, so everyone just hangs out in their own camp. In the locker room and players' lounge, you can feel the jealousy.

Anderson Silva
Anderson Silva

I don't think there is rivalry between the teams in Brazil. We each do our jobs, and we each have our part in MMA.

Anthony Joshua
Anthony Joshua

This is boxing, not tennis. Everyone likes a bit of rivalry, it makes for a good fight.

ASAP Ferg
ASAP Ferg

'Going Back to Cali' is one of my favorite songs because of all the East Coast - West Coast rivalry.

B. J. Daniels
B. J. Daniels

That whole rivalry with the fans is not something that I can pay attention to right now. This is my new home, and whatever I can do to help out Seattle is what I need to do.

Bill Simmons
Bill Simmons

The best under-the-radar rivalry is Dodgers-Giants. I had no idea how deep that one was until I moved to California... that one goes waaaaaaaaay back, and both sides absolutely detest each other. Fights in the stands, fights in the parking lot, the whole thing. It's every bit as bitter as Yankees-Red Sox without nearly the same hype.

Casey Affleck
Casey Affleck

There isn't any sibling rivalry; I think we have very different, very individual career paths and have never really thought that way. He's my brother. I only have one, and we're very close. We wouldn't ever allow that stuff affect our relationship.

Cesaro
Cesaro

Sheamus and I did have a rivalry and then became a team, and we went from being work acquaintances to becoming best friends.

Charles Horton Cooley
Charles Horton Cooley

The general fact is that the most effective way of utilizing human energy is through an organized rivalry, which by specialization and social control is, at the same time, organized co-operation.