Schalke have injury concerns over four players , including Benedikt Howedes and Klaas-Jan Huntelaar , for Tuesday 's Champions League game at Real Madrid . Defender Howedes and former Real striker Huntelaar picked up knocks in Saturday 's 3-1 Bundesliga win at home to Hoffenheim along with midfielder Marco Hoeger and forward Eric Maxim Choupo-Moting . 'Who will be able to play will be decided after the final training session , ' coach Roberto Di Matteo told a news conference on Monday . Klaas-Jan Huntelaar ( centre ) is an injury doubt for Schalke 's Champions League game at Real Madrid . Schalke forward Eric Maxim Choupo-Moting picked up a knock in Schalke 's win over Hoffenheim . Schalke goalkeeper Wetklo dives to make a save during a training session on Monday in Spain . Even without their 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 . Real have stumbled recently in La Liga , losing top spot to Barcelona at the weekend after a 1-0 reverse at Athletic Bilbao , but should have little trouble getting past the Bundesliga side . Victory for Carlo Ancelotti 's men would equal the Champions League record for consecutive home wins ( 12 ) and break the record for the most in a row overall . Real matched Bayern Munich 's competition-best run of 10 straight victories at Schalke . Schalke manager Roberto Di Mateo is facing a formidable task in trying to beat Madrid away . Schalke lost 2-0 to holders Madrid in the first leg of the last-16 clash in Germany last month . Schalke 's players go through their paces in training as they prepare to play Madrid on Tuesday . 'We have to have a perfect day as a team and hope our opponent is not on super form , ' said Di Matteo who was coach of Chelsea when they won the 2012 Champions League . 'If we manage to get the first goal it will certainly be very , very interesting . The important thing is that we are solid and organised as a team . 'If we manage that we can dampen Real 's attacking power . '
Schalke trail 2-0 after Champions League first leg home loss to Real Madrid . They travel to Athletic Bilbao with fitness doubts on four players . Klaas-Jan Huntelaar and Benedikt Howedes among the concerns .