Ace off-spinner Harbhajan Singh sees a problem in Shane Warne's suggestion of manufacturing balls with one side heavier than the other in the wake of sweat or saliva not being allowed on the ball to make it swing.

"With a one-sided heavy ball, the bowler and batsman will not be able tell how much it will swing. It could go awry. And what happens to the skill aspect of getting the ball to swing? Where will we see bowlers like Richard Hadlee and Wasim Akram," wondered Harbhajan.