I would say VC and rather than deeming it a trip, I could go for "striking" the other player. He has done it deliberately using his body and legs rather than using an arm, There is no chance of playing the ball. Clear intent to strike the player and bring him down stopping the attack.. VC. Now for those asking why not a YC, I would ask if this was 20 yards farther away from the ball or say 50 for that matter, would you say YC then? If he simply kicked him, rather than throwing his whole body, would you say YC? Combine the two hypotheticals.... if this was 50 yards away and a player turned and kicked another player RC or YC? I feel the fundamentals are the same. A player has deliberately struck another player throwing his body into him and is in no way a challenge for a ball. This is a RC for VC all day in my book