VIDEO: Diego Costa gets tricked into signing Jose Mourinho’s P45 by convincing prankster

We're not sure how official this is but it's pretty damn funny.

Jose Mourinho's job has never been in more jeopardy and that prompted a prankster's decision to get some signatures on the Chelsea manager's P45. The trickster managed to rope Mark Lawrenson into signing the document as well as Juan Mata, who was frozen out of Stamford Bridge by Mourinho. The most satisfying signature, though, came from Diego Costa who gave his unwitting blessing for the sacking of his own gaffer. https://www.youtube.com/watch?v=6Q9WQcsPkUg