Arsenal manager Arsene Wenger says speed is "important" when it comes to securing new signings, amid rumours that the Gunners are set to sign Germany striker Lukas Podolski.

Wenger admits the 26-year-old has not yet undergone a medical and that interest from other clubs is "a concern".

The Gunners boss also reveals he sometimes regrets letting Fabrice Muamba depart the club, and wonders if the Bolton midfielder was fortunate to collapse on the pitch as there were so many medical professionals present to help him.