The former Chelsea and Tottenham boss feels the Premier League side have the strongest and deepest squad in European competition this season
Manchester City have such a strong and deep squad that their "B team" would be good enough to win the Champions League, according to Marseille manager Andre Villas-Boas.
Marseille face City on Wednesday evening needing to better Olympiacos's result to finish third in their group and qualify for the Europa League, while the Premier League side have already booked their place in the knockout stages of the Champions League.