Roger Federer keen to get comeback back on track after Stuttgart stumble Jun 19, 2017 Federer was stunned 2-6 7-6 6-4 by 39-year-old Tommy Haas and now faces Taiwan's Lu Yen-Hsun in Halle desperate just to get a win under his belt again Share 0 Share on Facebook Tweet Tweet on Twitter +1 +1 on Google Plus