Rivalries have always been a part of competitive sports. Some date back to the 1800s and continue through today.
But nearly every year, new hatreds emerge. Some prove to be short-lived circumstances-of-the-moment animosities, others take root and become long-standing grudges.
Click on to see some of the newest, fiercest rivalries in sports. Ponder. Wonder. Predict. Which are here to stay, and which will be gone by next season.