Arsenal are anxious about tying Robin van Persie and Theo Walcott to new contracts.

The Sunday Mirror says Van Persie is the biggest concern, as he is out of contract in 2013 and wants to see Arsenal show ambition before committing himself.

Real Madrid, Barcelona and AC Milan are all watching developments.

Arsenal will begin talks on re-signing England winger Walcott, whose deal also expires in 2013, in the next few weeks.

There will be no shortage of takers at home and abroad if talks do not reach agreement.

Czech midfielder Tomas Rosicky, 31, will also be offered a new one-year deal.