Arsenal boss Arsene Wenger admits he's still not entirely happy with his defence.

Curiously, the arrival of rich owners like Carsen Yeung at Birmingham could play into Arsenal's hands, with Aston Villa and Sunderland showing it is possible to take points off the established top four sides.

"What is interesting is that it is much tighter than everybody predicted before the season," said Wenger. "We still need to improve at the back but we are consistent and we look strong."