Bethanie Mattek-Sands will not be joining the American team in this weekend's Fed Cup semifinals at the Porsche Arena in Stuttgart, Germany on indoor clay.
@BMATTEK tweeted out: "Im up! Unfortunately I can't make the FedCup trip as I need some treatment on a lingering hip/back issue. Im up early and headed there now. "
As the No. 1 singles player on the team, she added: "Really bummed I couldn't make it to Stuttgart with the rest of team USA!! But getting some much needed recovery time. Go USA!!"
As of now, the USA has World No. 81 Melanie Oudin, World No. 82 Christina McHale, World No. 99/ doubles World No. 6 Vania King (taking Mattek-Sands place) and doubles World No. 3 Liezel Huber geared up to take on Germany.
The USA leads the head-to-head series 8-4 against Germany and on clay USA leads 6-3.
Germany has higher ranked singles players on their team including World No. 19 Andrea Petkovic, World No. 34 Julia Goerges, World No. 156 Sabine Lisicki and World No. 251 Anna-Lena Groenefeld.
More dropouts include, Lucie Safarova, who injured her hamstring, and will not join Czech Republic team, who face Belgium; Lucie Hradecka is taking Safarova's place.
Replacing Jelena Dokic, Sally Peers will make her Fed Cup debut on Australia's team against Ukraine.