Dec 19 (Reuters) - Chelsea brought a ray of light to a largely miserable December when they reached the Capital One (League) Cup semi-finals after a 5-1 triumph at second tier Leeds United on Wednesday. The Londoners, dumped out of the Champions League as holders and beaten in the Club World Cup final already this month as players and dubious fans adjust to interim boss Rafa Benitez, went a goal down before storming back in heavy rain. ... More...