No further explanation
We think you get what is going on here, do we really need to type it out and make it obvious for all of you? The position that these two men find themselves in looks very similar to something you would see in an R-rated movie. This must have been a hard tackle.
The player on the ground does not look like he is having much fun here, but at least he caught the ball and that is really what matters. In football, when the other team gets the ball it can cost you a lot of points or time wasted trying to get it back.