Chelsea manager Mauricio Pochettino shared a little joke with Raheem Sterling after his free-kick against Preston North End yesterday. Raheem Sterling scored a brilliant free-kick in the second half of Chelsea‘s third round FA Cup tie versus Preston to put his side 3-0 up. Enzo Fernandez then netted after Sterling’s stunner and Thiago Silva and Armando Broja’s headers to make the final score 4-0. After the game, Mauricio Pochettino was quick to speak about the Blues’ third goal in his post-match press conference, which was shared by Hayters TV. Chelsea are having a lot of success in the domest…