Cape Town - Former Australian captain Ian Chappell feels South Africa's Vernon Philander should have been suspended for ball tampering.Philander was last Friday fined 75 percent of his match fee after breaching the ICC Code of Conduct during South Africa's first Test against Sri Lanka in Galle.He was captured on footage changing the condition of the ball by scratching the surface with his fingers and thumb. Philander dug his nails into the rough side of the ball at least twice and was also seen covering the ball with one hand while picking at it with the other. Speaking via a video clip on the ESPNcricinfo website, Chappell said the ICC should impose stricter sanctions for ball tampering because he feels monetary punishment is not much of a deterrent."It seems a bit strange that you can cheat and try and alter the direction of the match and you don't get suspended. I think it's got to be a suspension."I'd rather see a bit of a deterrent, right at the start, so that people know If we're going to mess around here and try and take an advantage, if we get caught (then) we're in big trouble. So hopefully it is a deterrent. I'd like to see a first charge - of ball tampering - which should carry a suspension and not just a fine."The Proteas won the first Test in Galle by 153 runs to take a 1-0 lead in the two-Test series.CLICK HERE to view the full video clip on ESPNcricinfo involving Chappell.