Germany will be without Philipp Kohlschreiber for their Davis Cup match against last year's finalists Argentina as the German number two is suffering from a gastrointestinal infection. The 28-year-old, ranked 31st in the world, fell ill after reaching the semi-finals of last week's ATP tournament in Montpellier. "I talked to him on the phone and he told me that he is not able to play," Germany team captain Patrik Kuehnen told SID, an AFP subsidiary. German number one Florian Mayer, ranked 21st in the world, leads the team which includes doubles specialist Philipp Petzschner and former world number two Tommy Haas could be in line for a call up. "He feels miserable. (His loss) is making our life harder at the weekend. Get well soon, Kohli," tweeted Haas.