Thomas Gerbasi, UFC – Writing as a diehard Van Halen fan, if you’re going to use the name “Diamond Dave” as your fighting nickname, you’ve got some big shoes to fill, and there will be no leeway given if you don’t live up to the standard set by Mr. Roth. Thankfully, there is no need for concern when it comes to the personality of The Ultimate Fighter’s David Kaplan, a young man who describes himself as “charismatic, emphatic, and fully automatic.”