Mohamed Zidan's Borussia Dortmund succumbed to their third Bundesliga defeat on Tuesday at the hands of Schalke 04, who won the game 1-0 away. Dortmund are now in 15th place on six points after seven games, which marked their worst league start in 21 years. Egyptian ace Zidan was included in the hosts' starting eleven, but his influence wasn't enough to salvage a draw. The 27-year-old had a couple of scoring chances, but his efforts from the edge of the area went high over. Peruvian striker Jefferson Farfan hit the winner on the half-hour mark to seal the victory for the away side. After the final whistle, Dortmund's spectators booed off their own team, who got involved in an altercation with the opposition players.