Ahli will face Bundesliga sides Schalke and Bayer Leverkusen in their pre-season camp that will take place in Germany starting from Friday. The Red Devils are set to play four matches ahead of their next campaign that will start on July 20 with a tough clash against Zamalek in the CAF Champions League group stage. Manager Manuel Jose will fly directly to Germany after spending a three-week summer vacation in Portugal. Palestinian keeper Ramzi Saleh couldn't make the trip as he hasn't been granted the visa to enter the German territory while new recruit Hussein Yasser Al-Muhammadi will catch them later as he is on international duty. Midfielder Mohamed Abou-Treika, who is having rehabilitation in Germany, will also join the camp.