There are plenty of You Tube clips out there showing some of the more ludicrous clashes between players and their humourous falls.
This one has to be among our favourites. It's a lovely through ball, leaving the player in front of goal, with the keeper willing to do whatever it takes(!) to stop him from scoring. That's definitely a foul... he's all over him.
And here are a few of those collisions we were talking about: