Yeah it's well known Rusty Wallace did not like Jeff Gordon. He even tried getting Dale Earnhardt Sr to team up with him to wreck Jeff as many times as possible but Dale Sr obviously didn't agree with Rusty. Heck Dale even took Jeff under his wing a bit giving him advice over the years. Their "rivalry" helped make NASCAR huge in the mid to late 90's. If you haven't listened to them yet I recommend the Dale jr download podcasts with Jeff Gordon.
What Austin Dillon did Sunday night was just poor sportsmanship. Then to lie about it on Dale Jr's weekly winner interview portion of his Tuesday podcast was just stupid, especially with the smt data proving he turned the car away more left to take out Denny Hamlin. "Um I didn't know he was there", BS you didn't you'd have to be blind not to see that car and if you are that blind than you need to get outta the driver's seat. I think if Bass Pro/Cabela's CEO wasn't there and one of his sponsored cars didn't win NASCAR would have dq'd Austin Dillon. He dumps millions into NASCAR and they probably didn't want to drive that money away.