Arsenal's Oliver Grioud, right, fights for the ball with Ersan Gulum (Top) and Veli Kavlak of Besiktas during the first leg of their Champions League qualifying soccer match at Ataturk Olympic stadium in Istanbul August 19, 2014.OSMAN ORSAL/Reuters
Arsenal held on with 10 men to draw 0-0 at Besiktas in the Champions League playoff round Tuesday, while Bayer Leverkusen is better placed to advance after winning 3-2 at FC Copenhagen.
Arsenal midfielder Aaron Ramsey was sent off with 10 minutes left in the first leg match in Istanbul after being shown a second yellow card for tugging Oguzhan Ozyakup's shirt.
However, the London club nearly grabbed a late winner when Alex Oxlade-Chamberlain's shot was turned onto the post.
The highest-scoring match of the night was in Denmark with Leverkusen holding the away goals advantage going into next Wednesday's home leg.
The other matches saw Athletic Bilbao draw 1-1 at Napoli, Red Bull Salzburg beat Malmo 2-1 and Steaua Bucharest edge Ludogorets Razgrad 1-0.