Thanks to Codog99 for sending in the following:
Just read an article on ESPN.com where Dallas Maverick's owner Mark Cuban is in a debate with Nets owner Mikhail Prokhorov. In his defense of having a fight with Prokhorov, Cuban referenced a confrontation between him and Sheamus on WWE RAW in 2009.
Here is both a link to the story on ESPN.com and a link to the infamous confrontation between the NBA owner during his guest host stint on Monday Night Raw and the current World Heavyweight Champion.