article_snippet: Schalke have injury concerns over four players, including Benedikt Howedes and Klaas-Jan Huntelaar, for Tuesday's Champions League game at Real Madrid.
article_snippet: Schalke goalkeeper Wetklo dives to make a save during a training session on Monday in Spain .
article_snippet: Even without Even without their injury problems, and midfielder Kevin-Prince Boateng's suspension injury problems, and midfielder Kevin-Prince Boateng's suspension, Schalke would be facing a formidable task at the Bernabeu after losing 2-0 to the holders in last month's last-16 first leg in Gelsenkirchen.
article_snippet: Schalke lost 2-0 to holders Madrid in the first leg of the last-16 clash in Germany last month .
article_snippet: Schalke's players go through Schalke's players paces in training as Schalke's players prepare to play Madrid on Tuesday . '
highlights_snippet: Schalke trail 2-0 after Champions League first leg home loss to Real Madrid .
  