This is an archived article that was published on sltrib.com in 2011, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

There are rivalries, and then there are feuds.Real Salt Lake and Sporting Kansas City are teetering on the latter.RSL coach Jason Kreis was plain as he could be following Tuesday's practice. Both teams, he said, don't like each other. It should make for an interesting affair Saturday when Sporting KC comes to Rio Tinto Stadium.What is the over/under on red cards?Most, if not all, the bad feelings stem from a preseason game in Kansas City that was called late after a fight erupted in what finished as 2-2 draw. The game play Aug. 3 was won by Sporting 2-0."It was a physical game," Kreis said.Omar Bravo denies it but he was accused of kicking someone from RSL. Finally, a rough tackle by KC's Roger Espinoza on RSL's Javier Morales caused players from both benches to storm the field and eventually cause Kreis to take his team off the field.That the game has plenty of playoff implications may keep the rough stuff to a low boil. Yet, it is always a bit more intense when something extra is involved in the outcome.