Jose Mourinho: Chelsea manager says expectations are higher

Jose Mourinho says the expectations of him are higher in his second spell as Chelsea manager after being unveiled on Monday.

The 50-year-old, who described himself as the "Special One" when he first managed the Blues between 2004 and 2007, returns for his second spell at the club and says he is now "the Happy One".

Mourinho says he wants to let Chelsea fans know that he will "try to reach success" over his four-year contract.