Open Era's Most Accomplished Major Singles Champion to Compete for First Time Since Winning 2017 Australian Open; Joins Sister Venus, CoCo Vandeweghe and Lauren Davis in Americans' First Matchup Since Clinching 18th Fed Cup Title in 2017 Czech Republic Faces Switzerland in Other First-Round Action on Tennis Channel Plus LOS ANGELES, Feb. 8, 2018 - Former World … [Read more...] about Serena Williams Returns to Competition to Play Fed Cup This Weekend, Will Air on Tennis Channel