FIFA have clamped down on footballers betting in the World Cup. They are making each footballer sign a written pledge that they won't bet on the tournament.

It doesn't stop at players though - the pledge will be signed by game officials and delegations at the World Cup - and includes their families

This new ruling comes on the tails of an early warning system that FIFA is setting up with the bookies to track gambling patterns

Article: FIFA INTRODUCE GAMBLING PLEDGE