Serena Williams battles past Caroline Wozniacki in WTA Finals semi . Simona Halep beats Agnieszka Radwanska in other semi . TL;DR Collection of all USATODAY.com coverage of Andy Roddick, including articles, videos, photos, and quotes. I love you - thank you for playing so well . '' No . 1 in group stages earlier in the week . Williams looking to clinch a fifth WTA Finals title ; Halep reaches final in first appearance .
Serena Williams battles past Caroline Wozniacki in WTA Finals semi . Simona Halep beats Agnieszka Radwanska in other semi . TL;DR Collection of all USATODAY.com coverage of Andy Roddick, including articles, videos, photos, and quotes. No . 1 in group stages earlier in the week . Williams looking to clinch a fifth WTA Finals title ; Halep reaches final in first appearance .