Egypt forward Mohamed Zidan is back amongst the goals as he helped Mainz wallop Koln 4-0 in the Bundesliga. The 30-year-old, who scored in his first six games with Mainz before struggling to find the net in the last four outings, notched his side's second of the night on 31 minutes following Eugen Polanski's 19th minute opener. Nicolai Muller struck the third in the 37th minute as Adam Szalai completed the rout midway through the second half. Zidan, who had been confined to the bench in his side's last two games against Werder Bremen and Stuttgart, started the game but was substituted four minutes past the hour mark. Mainz visit title-contenders Bayern Munich at the weekend.