Venus Williams' busy schedule took its toll on her at the Family Circle Cup. Williams, the tournament's No. 4 seed, was ousted by Tatiana Golovin of France 7-5, 6-4 on Thursday. It was Williams' first match loss in Charleston after winning the tournament in her first appearance last year. ``I'm just having a mental letdown from all the tennis I've been playing in the past four weeks,'' she said.