Tottenham go head-to-head with Chelsea at White Hart Lane tomorrow lunch time and the all-London clash will also see Andre Villas-Boas come up against his old boss Jose Mourinho.

The two managers, once good friends, have seen their relationship with one another break down in the past and will be determined to gain victory in tomorrow's clash.

Villas-Boas and Mourinho are certainly extremely alike. Both from Portugal, both making their names at Porto and both moving from club-to club fairly quickly.

There's no doubt about it, so far, Mourinho's career has been greater than Villas-Boas'. And, where Mourinho has succeeded with Chelsea, Villas-Boas ultimately failed.

But his short tenure at the Blues would have infect helped and not hindered his progress as a manger. Villas-Boas is hungry and determined to succeed with Tottenham.

Tactically Villas-Boas is improving in every game he manages. At Tottenham, he seems to have the respect and belief of his players - something that Mourinho has not always had at his previous clubs.

The 35-year-old Spurs boss has belief in what he has at his disposal, and when things don't work out he still backs his players.

Last season's Europa League elimination is a prime example. His side were beaten on penalties in the quarter final against Basel, but Villas-Boas hailed his team as 'heroes' and suggested his side set an example for English football.

Villas-Boas is certainly switched on and knows what he is doing. Roman Abramovich may one day regret not giving more time to the young manager with such huge potential.

In recent time, Villas-Boas has certainly shown he has an eye for a player. His seven signings at Tottenham in the summer all seem to be strong purchases.

The capture of midfielder Christian Eriksen for just £11.5m could well be the bargain of the summer.

And now, this season, we really will be able to see just how good Villas-Boas is. He now has a team at his disposal that is his. It's his creation, his players and he will demand success.

A victory in tomorrow's match could well start a new era of Villas-Boas dominance over Mourinho.

Mourinho and Villas-Boas certainly share similar traits - but they also have many differences.

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