The Washington Post reports on the latest squabble involving sports artists and trademark rights. At her 43(B)log, Rebecca Tushnet has a pithy summary: "painter paints a picture of Redskins player in uniform; wishes to sell painting; now there’s a dispute over the presence of Redskins [trade]marks in the painting."
Tushnet is also quoted within the article: "The idea in general is that we want artists to be able to portray the world as they see it, and we live in a heavily branded world."
She mentions the Tiger Woods case. There is also the University of Alabama's ongoing lawsuit against sports artist Daniel Moore. Both cases are discussed here.