Wenger: set-piece lapses will cost us the title
The Gunners twice led against Barclays Premiership leaders Chelsea thanks to a double from Thierry Henry but each time they were pegged back, first by John Terry's header from Arjen Robben's corner and then Eidur Gudjohnsen nodded in the Blues' second from a Frank Lampard free-kick.
It was a depressingly familiar tale, with the Gunners having been similarly undermined against the likes of Bolton and Southampton, as well as Panathinaikos in the Champions League.