Serena Williams pulls out of Fed Cup

DELRAY BEACH: Serena Williams has pulled out of her Fed Cup quarter-final match against Belgian Kirsten Flipkens later on Sunday with a knee inflammation.   

Williams was examined by Fed Cup physician Jennifer Solomon, who advised her to not play.   

The US hold a 2-0 lead and Williams will be replaced by Vania King, who is also scheduled to play doubles in the fifth match of the day with Lisa Raymond.   

The winner of the tie will face Russia, who won their quarter-final against Spain.