Kurt Busch vs. Jimmie Johnson
The Johnson-Busch feud has been brewing for more than a year, and the rivalry was rekindled after some pushing and shoving at Pocono on Aug. 7. Of Busch, Johnson said: "He's a big crybaby and wants to take shots at me when he can. He's good for running his mouth. He can keep running it. I'll shut it for him." With both drivers in contention for the title, we haven't heard the last of this feud.