Fed Cup: 10th straight semis for Czechs; Serena returns for US

USA's Serena Williams reaches for a shot against the Netherlands during a doubles match in the first round of Fed Cup tennis competition in Asheville, N.C., Sunday, Feb. 11, 2018. (AP Photo/Chuck Burton)

The Czech Republic beat Switzerland 3-1 to advance to its 10th straight Fed Cup semifinals on Sunday, and Serena Williams played her first competitive match in more than a year as defending champion United States defeated the Netherlands 3-1.