Marketing Weak: Helen Flanagan wears next to neigh clothes in Ladbrokes' Cheltenham Festival ad

This week's Marketing Weak winner - the award for the worst ad from the past seven days - goes to Ladbrokes for its teaser video to promote the Cheltenham Festival.

We say teaser, but the ad's star Helen Flanagan leaves precious little to the imagination as she works out in a revealing outfit to a Eurodance tune from the Mr Motivator era while being ogled at by a creepy cast of jockeys.