Golf chiefs have announced a crackdown on super grooves in irons at the end of next season.

And that's bad news for Padraig Harrington, who uses grooves that generate massive spin from the rough.

Golf chiefs could send Padraig Harrington's bid for a major title into a spin.

The Dubliner is convinced that he is to blame for a possible crackdown on the box-shaped U-grooves that allow top players to attack courses from the rough.