Is Diego Costa His Own Worst Enemy?
During the opening weekend of the Premier League season, Chelsea striker Diego Costa once again found himself as the center of the attention in the Blues' match against Swansea, as he was involved in two prominent penalty shouts while on the attack. He did not get either call and was quick to show just how upset he was that a penalty was not awarded. Which begs the question: is Diego Costa his own worst enemy at this point?