Andre Villas-Boas v Jose Mourinho
Arguably the biggest battle this weekend is not on the pitch at all, but rather in the managerial dugout between Villas-Boas and Mourinho.
Former friends and colleagues who worked together at FC Porto, Inter Milan and Chelsea, the relationship between the two appears to have broken down in recent years.
Although both men may claim that their focus will be solely on the game this weekend, it will surely be immensely difficult to set their personal feelings aside.
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