Mainz's Mohamed Zidan scored against his parent club Borussia Dortmund but couldn't deny the Bundesliga champions from clinching their eighth straight win. Egypt forward Zidan, on loan at Mainz from Dortmund, hit the net for the fifth game on the trot to cancel out Jakub Blaszczykowski's opener for the hosts. But Japan ace Shinji Kagawa restored Dortmund's lead to cement his team's position on top of the German league table. Following Bayern Munich's defeat at Bayer Leverkusen, Dortmund open a four-point gap with the Bavarian giants as they look on course for a second successive title. Zidan's 74th minute strike broke his own record of four goals in the first four games for his new club; an unprecedented feat by any winter signing in the history of the Bundesliga. As he promised before the game, the 30-year-old did not celebrate at Signal Iduna Park. Zidan's goal
