By Ricky Dimon The sun is setting on Sunshine's tennis career. Caroline Wozniacki, affectionately nicknamed "Sunshine." is retiring from tennis at the 2020 Australian Open. She announced her decision Friday on Good Morning America with accompanying posts on social media. Wozniacki, 29 years old, married former NBA player David Lee this summer and she was recently … [Read more...] about Tennis News • Caroline Wozniacki Announces She Will Retire At The 2020 Australian Open