article_snippet: Meanwhile, defending champions Switzerland, playing without Roger Federer or Stan Wawrinka, are on the brink after falling 2-1 behind Belgium as Michael Lammer and Adrien Bossel lost 1-6 6-3 6-2 6-2 to Ruben Bemelmans and Adrien Bossel.
highlights_snippet: Reigning champions Switzerland on brink after doubles loss against Belgium .