All eyes will be on Chelsea manager Jose Mourinho and Tottenham boss Andre Villas-Boas as the former friends meet in a bitter grudge match on Saturday.
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Any derby between Spurs and Chelsea offers the potential for an explosive encounter, but Mourinho's dysfunctional relationship with his former pupil Villas-Boas makes the London rivals' latest clash at White Hart Lane even more flammable than usual.
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Mourinho was infuriated this week when Villas-Boas lifted the lid on the simmering tensions between the two Portuguese coaches, who have gone from close colleagues to feuding enemies in the space of four years.
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"We had a great personal and professional relationship before that we don't have now," Villas- Boas said.
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"I don't think we need explanations. But our relationship broke down.
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"I think we have the mutual respect for each other and we understand what we have been through cannot just disappear but it's not like it was before."
It was a nice game but I would've loved it if Tottenham FC won..They played better football! Too bad it ended in a draw...