This needs a speedy close or something like it. In summary: a. there is no requirement that sources (any sources) be available online; plenty of print sources are available and it appears (see Devil's Advocate's comments) that online sources actually are available; moreover, the objection that more "recent" sources should be required for an apparently controversial subject holds no water since sources are plenty recent and the topic plenty non-controversial. b. there is no requirement that the article have an image illustrating the subject. c. whether this is or isn't a sport is an irrelevant question. Why wouldn't it be a sport? Chess boxing is called a sport, as is American football, and arm wrestling. In some circles, masturbation is a sport, and competitive eating. One questions the good faith of the editor in listing this: what venues are offered to improve the article, which is the primary objective of WP:GAR?