Jon Prideaux, who launched his Virtual Visa at a card fair in Paris this week, says that charge-backs due to the Internet run at between ten and 40 times the level of charge-backs in face-to-face transactions.

ECONOMIST: Paying online

With Puyol's later red card also ruling the Barca skipper out, Barcelona will be without both first-choice centre-backs at the Nou Camp.

BBC: Arsenal 2-2 Barcelona