Williams kicked the ball right at van Persie as he lay on the ground, though the Swansea player claims there was no intent to hurt the Man Utd forward.

"In the Van Persie situation you can clearly see that he could have been killed," he told Sky Sports News. "The FA has got to look into it regardless that he has been given a yellow card. He should be banned for a long time because that was the most dangerous thing I've seen on a football field for many years."