Had a brain cramp on Saturday. Defender grabs ball carrier with both hands, stopping his advance, and then sweeps his leg across the ball carriers legs to bring him to ground. Ball carrier complained after that is was either illegal under 10.4(d) (I have always considered a 'trip' as being leg-on-leg only, i.e., without any grasping) or a dangerous play (these were club men, so no). I guess the issue here is that I'm unsure of the definition of a 'trip'. Please advise...