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12:52 GMT, Monday, 22 December 2008  Lee Dixon's tactical view
Lee Dixon By Lee Dixon Match of the Day 2 pundit  Arsenal have a
problem in defence that I have noticed in a few games this
season - and it was particularly evident during Sunday's draw
with Liverpool.  The back four plays too high up the pitch when
there is no pressure on the opposition footballer in possession.
If an opponent has the ball in space and thus plenty of time to
pick his pass then the defence needs to retreat towards their
own goal.  The tighter you go towards the ball the more space
you leave in behind - and against a quick player like Robbie
Keane, who thrives on running off a defender's shoulder, that is
very dangerous.  It was no surprise that it was from a long ball
over the top of midfield that Keane scored Liverpool's
spectacular equaliser.  Arsenal should have dropped off before
the pass had even been played but they had not done so and left
enough space in behind